Aluminum has served in war since ancient times, but its most common application today is as armor, allowing for well-protected but light vehicles that can tear through rough terrain where steel would get bogged down. But aluminum has an unearned reputation for burning, so troops don’t line up to ride in them under fire.
Crewmen in the coupla of an M-2 Bradley infantry fighting vehicle elevate the barrel during a 1987 exercise.
(U.S. Army Pfc. Prince Hearns)
Aluminum got its start in war as alum, a salt composed of aluminum and potassium. This was one of the earliest uses of aluminum in military history. Ancient commanders learned you could apply a solution of the stuff to wood and reduce the chances it would burn when an enemy hit it with fire.
As chemists and scientists learned how to create pure aluminum in the 1800s, some military leaders looked to it for a new age of weaponry. At the time, extracting and smelting aluminum was challenging and super expensive, but Napoleon sponsored research as he sought to create aluminum artillery.
Because aluminum is so much lighter than steel, it could’ve given rise to more mobile artillery units, capable of navigating muddy lanes that would stop heavier units. Napoleon’s scientists could never get the process right to mass produce the metal, so the ideas never came to fruition.
But aluminum has some drawbacks when it comes to weapon barrels. It’s soft, and it has a relatively low melting point. So, start churning out cannon balls from aluminum guns, and you run the risk of warping the barrels right when you need them.
Instead, the modern military uses aluminum, now relatively cheap to mine and refine, to serve as armor. It’s light, and it can take a hit, making it perfect for protection. The softness isn’t ideal for all purposes, but it does mean that the armor isn’t prone to spalling when hit.
But aluminum’s differences from steel extend deep into the thermal sphere. While aluminum does have a lower melting point than steel, it also has a higher thermal conductivity and specific energy (basically, it takes more heat to heat up aluminum than it does to heat up steel). So it can take plenty of localized heat without melting away.
An armored personnel carrier burns in the streets of Egypt during 2011 protests.
(In industrial applications that rely on aluminum burning, the process is usually started by burning another metal, like magnesium, which burns more easily and releases enough heat, and the aluminum is crushed into a fine powder and mixed with oxygen so that the soot doesn’t halt the reaction.)
In a book published in 1993, after the Bradley became one of the heroes of Desert Storm, he claimed that the vehicles survived because of changes made after those tests. But while the Army might have switched the locations where ammo was stored and other design details, they didn’t change the hull material.
But, again, aluminum does melt. And the few Bradley’s that did suffer extended ammo fires did melt quite extensively, sometimes resulting in puddles of aluminum with the steel frame sitting on top of it. This spurred on the belief that the aluminum, itself, had burnt.
The M2A3 Bradley is capable, but troops don’t love its aluminum hull.
(Winifred Brown, U.S. Army)
But aluminum melts at over 1,200 Fahrenheit, hot enough that any crew in a melting aluminum vehicle would’ve died long before the armor plates drip off. Aluminum is great at normal temperatures, providing protection at light weights.
And so aluminum protects vehicles like the M2 Bradley and the M113 armored personnel carrier. The new Armored Multi-Purpose Vehicle that is slated to replace the M113 has, you guessed it, an aluminum hull. But while troops might enjoy the increased space, they’ll probably leave off any discussion of the vehicle’s material while bragging.
China became the third country to land a probe on the Moon on Jan. 2, 2019. But, more importantly, it became the first to do so on the far side of the moon, often called the dark side. The ability to land on the far side of the moon is a technical achievement in its own right, one that neither Russia nor the United States has pursued.
The probe, Chang’e 4, is symbolic of the growth of the Chinese space program and the capabilities it has amassed, significant for China and for relations among the great power across the world. The consequences extend to the United States as the Trump administration considers global competition in space as well as the future of space exploration.
Like the U.S. and Russia, the People’s Republic of China first engaged in space activities during the development of ballistic missiles in the 1950s. While they did benefit from some assistance from the Soviet Union, China developed its space program largely on its own. Far from smooth sailing, Mao Zedong’s Great Leap Forward and the Cultural Revolution disrupted this early programs.
The Chinese launched their first satellite in 1970. Following this, an early human spaceflight program was put on hold to focus on commercial satellite applications. In 1978, Deng Xiaoping articulated China’s space policy noting that, as a developing country, China would not take part in a space race. Instead, China’s space efforts have focused on both launch vehicles and satellites — including communications, remote sensing, and meteorology.
This does not mean the Chinese were not concerned about the global power space efforts can generate. In 1992, they concluded that having a space station would be a major sign and source of prestige in the 21st century. As such, a human spaceflight program was re-established leading to the development of the Shenzhou spacecraft. The first Chinese astronaut, or taikonaut, Yang Liwei, was launched in 2003. In total, six Shenzhou missions have carried 12 taikonauts into low earth orbit, including two to China’s first space station, Tiangong-1.
In addition to human spaceflight, the Chinese have also undertaken scientific missions like Chang’e 4. Its first lunar mission, Chang’e 1, orbited the moon in October 2007 and a rover landed on the moon in 2013. China’s future plans include a new space station, a lunar base and possible sample return missions from Mars.
Chang’e 1 spacecraft.
A new space race?
The most notable feature of the Chinese space program, especially compared to the early American and Russian programs, is its slow and steady pace. Because of the secrecy that surrounds many aspects of the Chinese space program, its exact capabilities are unknown. However, the program is likely on par with its counterparts.
In terms of military applications, China has also demonstrated significant skills. In 2007, it undertook an anti-satellite test, launching a ground-based missile to destroy a failed weather satellite. While successful, the test created a cloud of orbital debris that continues to threaten other satellites. The movie “Gravity” illustrated the dangers space debris poses to both satellites and humans. In its 2018 report on the Chinese military, the Department of Defense reported that China’s military space program “continues to mature rapidly.”
Despite its capabilities, the U.S., unlike other countries, has not engaged in any substantial cooperation with China because of national security concerns. In fact, a 2011 law bans official contact with Chinese space officials. Does this signal a new space race between the U.S. and China?
Regardless, China’s abilities in space are growing to the extent that is reflected in popular culture. In Andy Weir’s 2011 novel “The Martian” and its later film version, NASA turns to China to help rescue its stranded astronaut. While competition can lead to advances in technology, as the first space race demonstrated, a greater global capacity for space exploration can also be beneficial not only for saving stranded astronauts but increasing knowledge about the universe where we all live. Even if China’s rise heralds a new space race, not all consequences will be negative.
The U.S. Army announced on Aug. 28, 2019, that the National Museum of the United States Army will open to the public on June 4, 2020.
The National Museum of the United States Army will be the first and only museum to tell the 244-year history of the U.S. Army in its entirety. Now under construction on a publicly accessible area of Fort Belvoir, Virginia, admission to the museum will be open to the public with free admission.
The museum will tell the Army’s story through soldier stories. The narrative begins with the earliest militias and continues to present day.
“The Army has served American citizens for 244 years, protecting the freedoms that are precious to all of us. Millions of people have served in the Army, and this museum gives us the chance to tell their stories to the public, and show how they have served our nation and our people,” said acting Secretary of the Army Ryan D. McCarthy.
(US Army photo)
In addition to the historic galleries, the museum’s Army and Society Gallery will include stories of Army innovations and the symbiotic relationship between the Army, its civilian government and the people. The Experiential Learning Center will provide a unique and interactive learning space for visitors of all ages to participate in hands-on geography, science, technology, engineering, and math (G-STEM) learning and team-building activities.
(US Army photo)
“This state-of-the art museum will engage visitors in the Army’s story — highlighting how the Army was at the birth of our nation over 240 years ago, and how it continues to influence our everyday lives,” said Ms. Tammy E. Call, the museum’s director. “The National Museum of the United States Army will be stunning, and we can’t wait to welcome visitors from around the world to see it.”
(US Army photo)
The museum is a joint effort between the U.S. Army and the Army Historical Foundation, a non-profit organization. The Army Historical Foundation is constructing the building through private funds. The U.S. Army is providing the infrastructure, roads, utilities, and exhibit work that transform the building into a museum.
(US Army photo)
The Army will own and operate the museum 364 days a year (closed December 25). Museum officials expect 750,000 visitors in the first year of operation. A timed-entry ticket will be required. Free timed-entry tickets will assist in managing anticipated crowds and will provide the optimum visitor experience. More information on ticketing will be available in early 2020.
Being a patient at the VA can be one hell of an emotional experience. Every time we set foot inside the facility, we arrive with low expectations but we still hope for the best possible outcome. Although some VA hospitals do provide some excellent service to our nation’s finest, more than one branch has created a negative impression upon the veteran community.
In fact, many veterans decide to prolong seeking treatment as long as possible due to the lack of quality service that has been marketed in the news and other media outlets.
Having witnessed undedicated Veterans Affairs workers for ourselves, adverse situations could be avoided if specific sentences were kept at a minimum.
It can be difficult enough to get a VA appointment with all the long lines and lack of staff. We understand that sh*t happens and some schedules have to be rearranged. But one of the things that frustrates veterans the most is making their way to a location just to learn that their appointment has been canceled and “someone” tried contacting them.
“Your claim was unfortunately denied.”
Getting denied for compensation sucks! Especially when it’s for an ailment you proved you have time-and-time again. In our experience, vets usually get turned down by a panel of civilians that they’ve never met. They’re being judged solely on what is written on a piece of paper by a third-party who have very little actual knowledge about the condition.
“We couldn’t find anything wrong with you, so you’re free to go.”
What the f*ck?
That’s usually the first thing that enters a veteran’s mind. It’s no secret that the VA tends to issue a long list of mental health medications the first few visits. Since veterans only get to see a VA doc every few weeks or months, in our perspective, they’re not exactly getting treatment that is in-depth enough for a proper diagnosis.
“There are no appointments available for at least eight weeks.”
It’s common to be told that you can’t see a doctor for another few weeks. In the civil sector, seeing your family physician might only take a few hours to a few days for a time slot to open up. Many vets are already stressed out enough, and waiting weeks or months for treatment — while knowing what will happen or where we’re going to be in that time — troubles us.
“The current hold time is approximately 90 minutes… or more.”
No words can lower the frustration of hearing that time-and-time again. We’re accustomed to the “hurry up and wait” scenario, but when it comes to medical treatment, we expect to be seen relatively close to our appointment time.
Waiting for hours and hours to be seen even though we made an appointment just sucks.
“You just need to get 18 different signatures from 20 other departments — then we can sign you off.”
Yes, we know that “18 different signatures from 20 other departments” doesn’t make complete sense.
The point is, making something overly complicated feels like a tactical decision meant to discourage follow-up — and it works. Many vets just give up and don’t seek the treatment they need.
Before the Civil War, Robert E. Lee’s mansion was part of a Virginia estate on the Potomac River, across from the nation’s capital. It was land his wife inherited from her father. At 1,100 acres, it was an idyllic area to raise George Washington’s adopted great-grandchildren (his father-in-law, was George Washington Park Custis, the adopted son of the first Commander-in-Chief and our nation’s first First Lady).
They must have been really upset when the Union Army came by in May of 1861 and seized it from them.
The previous month, South Carolinian contingents of the Confederate Army fired on Fort Sumter in Charleston Harbor. The Civil War had begun. President Lincoln called up the U.S. Army, who came to the capital and took control of the Arlington side of the Potomac. The area was a prime position for Union Artillery.
In April 1861, Lee was appointed commander-in-chief of Virginia’s military forces. Though the state had not yet seceded, it was widely expected to do so. When Virginia left the Union, Lee was appointed to a Brigadier General’s rank in the Confederate Army in May 1861. That’s when the U.S. government took his land and home. Lee was with his army in nearby Manassas when the U.S. Army came knocking on May 24th.
Though the war started well for Lee and Virginia, it didn’t end well. After his defeat at Gettysburg, the Army of Northern Virginia would never recover and Lee would be forced to surrender at Appomattox Court House in 1865. In the meantime, the land was used by Lee’s (and other) former slaves to grow food to feed the Union Army.
After the war, the Lee family decided to try to get their land and home back through a series of legal battles. The main sticking point? Lee’s unpaid tax bill. The U.S. government charged the Lees $92.07 in taxes on their land ($2,130.52 in today’s dollars). Mary, Lee’s wife sent her cousin to pay the bill, but the U.S. would only accept the payment from Lee herself. When she didn’t show, they put the property up for sale.
Now that the land was delinquent on its taxes the government could purchase it, which it did. For $26,800, the equivalent of just over $620,156 today. Except in 2017, 1100 acres of Arlington, Va. is worth millions. But in 2017, that specific 1100 acres is actually priceless, because it’s now called Arlington National Cemetery. It’s where the United States inters its honored war heroes.
The U.S. long ago turned it into a cemetery for those troops lost in the Civil War. Union troops were buried there beginning in 1864, partly to relieve the overflowing Union hospitals and partly to keep the Lee family from ever returning. As late as 1870, the year Gen. Lee died, Mary Lee petitioned Congress to get her home back and remove the dead. The petition failed and Mary Lee died in 1873.
Her son, however, sued the government, claiming its 1864 tax auction was unconstitutional. The Supreme Court agreed and ordered the government to either remove the bodies from the cemetery or pay the Lee estate a fair market price for the land. The government paid $150,000 for the now-priceless land.
Politicians: Let’s use the military to fight the coronavirus!
Military: uhhhh ok.
Many of us who served have participated in humanitarian missions around the world and at home. Whether it was big disasters at home like Hurricane Katrina, unrest like the Los Angeles riots of 1992 or the massive tsunami in 2004 to volcanic eruptions, earthquakes and famines in vast corners of the world, the United States military is usually there to provide assistance or security.
With the COVID-19 outbreak paralyzing most of the country and reports that it could possibly get really ugly, politicians have been throwing out many plans to help Americans, prevent the spread of the virus, and how to act if the worst-case scenario happens.
This past Sunday, during the Democratic primary debate, former Vice President Joe Biden threw out his plan to utilize the military to fight the outbreak.
“I would call out the military now,” Biden said. “They have the ability to provide this surge that hospitals need. They have the capacity to build 500 hospital beds and tents that are completely safe and secure. It’s a national emergency, and I would call out the military. We’re at war with the virus.”
His lone debate opponent (fellow veteran Tulsi Gabbard, anyone?) Vermont Senator Bernie Sanders echoed Biden’s call and said he would mobilize and deploy National Guard Units to combat the outbreak. New York Governor Andrew Cuomo has started a plan to use the New York National Guard to create or build upon facilities so up to 9,000 more hospital beds could be ready if needed.
This talk brings up the images we have seen in the movies. When a monster attacks, a terrorist plot happens or a cataclysmic disaster happens, the military comes in, sets up shop and gets to kicking ass.
We have even seen in movies like Outbreak and Contagion where the military is either on the forefront or very involved in epidemic operations.
For all that talk and imagery we have, the Pentagon is a bit more restrained on how exactly the military will be involved.
“The Department of Defense is ready, willing and able to support civilian authorities to the greatest extent possible at the direction of the president,” Pentagon spokesperson Jonathan Hoffman said, “We just want to make sure that the conversation that we have is informed by the facts of what is possible and what is not and what those trade-offs are.”
The big issue is beds and field hospitals. The military can set up big tents to accommodate many potential patients. These tents can go anywhere from a couple of dozen to housing hundreds. The issue though, is if the military is prepared to handle coronavirus patients. The military trains and is prepared to handle trauma and casualties from war and natural disasters. Outbreaks, on the other hand, might not be the military’s strong suit. Do they have the medical personnel and support staff to handle the potential of thousands of infected patients?
The Navy has two hospital ships, but are limited in size, geography (they can only be close to the seaboards obviously) and are configured to deal with mass trauma and not infectious diseases. Being in an open sickbay might not be the best place for a large group of people that need to be treated in isolation.
National Guard units would be the units that would be used to help with any outbreak containment and treatment efforts. Active duty would be prohibited (as many of us know) by the Posse Comitatus Act. Right now, there are less than 1,000 Guardsmen mobilized (mostly in New York). If the virus spreads, there will be more mobilized, but the trade-off will have to be weighed. Many Guardsmen also work as police, firefighters and first responders, and that would be a huge loss to the town they are leaving.
While there are no plans yet to use the National Guard for law enforcement purposes, we keep hearing about curfews, lockdowns, shelter in place and Marshall Law (sorry Rubio) means that the military might have to consider they will be utilized as an auxiliary police force.
With all that’s been said, we do have to factor in two things. The first is that the military might not even be needed. This might all blow over or civilians might be able to take care of the outbreak without the need for much or any military assistance.
The second factor is that our military is really good at being adaptable. Time and time again, the United States military gets served a sh*t sandwich, and they adapt and overcome those situations. If the coronavirus spread does require a massive response from the military to help civilians, I think the men and women in uniform will do everything they can to make sure they can help as many of us as possible.
The nation’s highest medal for valor under enemy fire dates back over 150 years and has been awarded to well over 3,000 men and one woman in honor of heroic acts, including everything from stealing enemy trains to braving machine gun fire to pull comrades to safety.
This is the true history of the Medal of Honor.
Army Pvt. Jacob Parrott was one of Andrew’s Raiders and the first recipient of the Medal of Honor. Most of the other soldiers on the raid were eventually awarded the medal.
(Illustration by William Pittenger, Library of Congress)
The bill quickly made it through Congress and President Abraham Lincoln signed it into law on December 21. At the time, the president was authorized to award 200 medals to Navy and Marine Corps enlisted personnel. It would be another seven months, July 1862, before Army enlisted personnel were authorized to receive the medal — but another 2,000 medals were authorized at that time.
The first medal to be awarded went to a soldier, Army Pvt. Jacob Parrott, one of Andrews’ Raiders who stole a locomotive in Big Shanty, Georgia, and took the train on a 87-mile raid across Confederate territory in April, 1862. Parrott received the Medal first, but nearly all Army personnel on the raid eventually received it. Secretary of War Edwin Stanton presented the first six.
The Navy was the first service authorized to present Medals of Honor, but the Army beat them to the punch. Still, hundreds of medals were awarded to deserving sailors for actions taken during the conflict, including this one presented to William Pelham for actions on the USS Hartford in 1864.
(Naval History and Heritage Command)
Although Andrews’ Raiders were among the first to receive the Medal of Honor, they were not the first persons to earn it. Recommendations for the award trickled in for actions taken earlier.
The earliest action that would earn an Army Medal of Honor took place in February, 1861, when assistant Army surgeon Bernard Irwin rescued 60 soldiers from a larger Apache force with only 14 men. The first naval action to earn the medal took place in October, 1862, when sailor John Williams stayed at his position on the USS Commodore Perry when it was under heavy fire while steaming down the Blackwater River and firing on Confederate batteries.
In 1863, the medal was made permanent and the rules were broadened to allow its award to Army officers. Soon after, in 1864, a former slave named Robert Blake became the first Black American to receive the Medal of Honor when he replaced a powder boy who was killed by a Confederate shell, running powder boxes to artillery crews while under fire.
Seven years later, the Civil War had ended but campaigns against Native Americans were being fought in earnest. It was during these Indian Wars that William “Buffalo Bill” Cody also received the medal despite being technically ineligible.
The medals for Walker and Cody were rescinded in 1917 but later reinstated. Walker’s was reinstated in 1977, Cody’s in 1989.
It’s sometimes noted that the Civil War-standard for the Medal of Honor was lower than the standard applied during World Wars I and II and more modern conflicts. The change in requirements began in 1876 after a surge of recommendations poured in following the Battle of Little Big Horn.
Additional recommendations came from the Legion of Honor, a group led by Medal of Honor recipients that would later become the Congressional Medal of Honor Society. In 1897, President William McKinley adopted new, higher standards that would later be applied during World War I.
Air Force Capt. Jay Zeamer received a Medal of Honor of the Gillespie design featuring a blue ribbon with 13 stars, the word valor, and a wreath of laurels.
(U.S. Air Force photo by Ken LaRock)
While Civil War and Indian Wars-era Medals of Honor featured designs that incorporated a red, white, and blue ribbon and multiple clasps, in 1904, Medal of Honor recipient and Gen. George Gillespie introduced a new design with a blue ribbon carrying 13 stars. It also added a laurel wreath around the iconic star, added the word “VALOR” to the medal, and made a number of other, smaller design changes.
All Medal of Honor designs approved after 1904 are an evolution of this design.
In 1915, the Navy broadened its rules for the medal so that naval officers, like their Army counterparts, were eligible. In 1918, additional rules for the Army Medal of Honor required that the valorous action take place in conflict with an enemy, that the recommended awardee be a person serving in the Army, and that the medal be presented within three years of the valorous act.
Another change during World War I was that the Medal of Honor was officially placed as the highest medal for valor. While it had always been one of the top awards, it was previously uncertain if the Medal of Honor always outranked service crosses, distinguished service medals, and the Silver Star. In July 1918, the relative tiers of each medal were established, officially putting the Medal of Honor on top.
U.S. Coast Guardsman Douglas Munro and his compatriots work to protect U.S. Marines on the beaches of Guadalcanal during a withdrawal under fire from Japanese soldiers.
(U.S. Coast Guard)
The other military services would later adopt similar restrictions.
Because no Coast Guard version of the medal had ever been designed, Munro’s family was presented the Navy version. A 1963 law allowed for a Coast Guard design but no design has been approved and no medals of such a design have ever been made.
Most people are familiar with the basics: Slap together enough uranium or plutonium and — kaboom! — you have a nuclear blast. But the details of how these complex devices are made, delivered, and controlled can make the difference between keeping the peace and sparking a cataclysm.
It doesn’t help that there’s more than 60 years’ worth of convoluted terminology surrounding the complex policies and politics of nuclear weapons. There are words like isotopes, tritium, and yellowcake; abbreviations such as HEU, LEU, SSBN, and CVID; and the subtle yet striking difference between uranium-235 and uranium-238.
As US Secretary of State Mike Pompeo resumes talks with North Korea over its nuclear weapons program, we’ve defined some of the most important (and misunderstood) words, phrases, and acronyms here.
That effort could take years to pan out, and it’s guaranteed to get very, very complicated.
A mockup of the Fat Man nuclear device.
(U.S. Department of Defense photo)
1. Nuclear weapon
A conventional explosive device rapidly burns up a chemical to cause a blast. A nuclear weapon, meanwhile — such as a bomb or warhead — splits atoms to release thousands of times more energy.
Yet the term “nuclear weapon” can also refer to a vehicle that’s able to deliver a nuclear attack, such as missiles, fighter jets, stealth bombers, and truck-like mobile launchers. (If flying dinosaurs were alive today and trained to drop nuclear bombs, the creatures may be considered nuclear weapons.)
During weapons inspections like the ones between the US and Russia, nuclear warheads are actually concealed with a piece of cloth; it’s the vehicles, missiles, and launch or bombing bays that are the focus. Without them, a warhead can’t get anywhere quickly.
A Hwasong-14 intercontinental ballistic missile, or ICBM, launching from North Korea.
Technically speaking, an ICBM is any missile capable of delivering a warhead from more than 3,415 miles away. The missile silos in the US in which they’re stored are sprinkled around the country, with most stationed in middle America.
Fallout describes the dangerous leftovers of a nuclear weapon: a cloud of dust, dirt, sand, pebbles, and bits of debris that an explosion has irradiated.
Bombs or warheads detonated near the ground vastly increase the amount of fallout by sucking up soil and debris, irradiating it, and spreading it for dozens if not hundreds of miles. Very fine particles can circle the globe and be detected by special airplanes.
Part of CNO cycle diagram, made just to be illustrative for nuclear reactions in general.
Each element on the Periodic Table has a unique chemical identity but can have different weights, or isotopes.
For example, hydrogen is the smallest atom and is usually made of just one positively-charged proton in its nucleus, or core. Its shorthand name, H-1, specifies its atomic weight. If a chargeless neutron gets added, you get the isotope deuterium, or H-2. Add two neutrons and you have the isotope tritium, or H-3.
All three forms of hydrogen have nearly identical chemistry and can, say, bond with oxygen to form water. But their nuclear properties differ significantly: deuterium and tritium can fuel thermonuclear explosions because their extra neutrons can encourage helium atoms (which have two protons) to fuse together far more easily than H-1 alone.
5. Uranium — including U-238, U-235, and U-233
Uranium is a dense element and a key ingredient in nuclear weapons production. It occurs naturally in ores and minerals and has a few important isotopes.
U-238 makes up about 99.27% of natural uranium and is inert. Less than 1% of the uranium in ore is U-235 — the “active ingredient” that can be used for nuclear reactor fuel or bombs.
U-235 is special because it becomes very unstable when it catches a flying neutron. This capture causes it to split (known as fission), release a huge amount of energy, and shoot out more neutrons. Those neutrons can then split other atoms of U-235 in a chain reaction.
Although plutonium (which we’ll describe in a moment) is now the favored bomb-making material, U-235 was used in the Little Boy bomb that the US dropped on Hiroshima in 1945.
U-233 is another isotope that’s weapons-ready, but it’s only made inside special reactors that no longer exist (for now).
6. Plutonium, including Pu-238, Pu-239, and Pu-240
Plutonium is a metallic element that doesn’t occur in nature, and it most often refers to the isotope Pu-239: the go-to material for modern nuclear weapons.
Only nuclear reactors can make Pu-239. They do so by irradiating U-238 with neutrons. The plutonium can then be separated from the uranium, concentrated, and formed into weapons pits — the cores of nuclear weapons.
Pu-239 can more easily trigger a nuclear explosion than uranium, and with less material; as little as about 10 lbs can be enough.
Plutonium-240 is an unwanted and pretty radioactive byproduct of making Pu-239. It can make bombs prematurely explode and fizzle because it’s fairly radioactive. Pu-238 is a byproduct of Cold War weapons production that generates a lot of warmth and powers NASA’s most adventurous robots in the cold, dark depths of space.
7. Yellowcake uranium
Yellowcake is a powder of uranium oxide that’s made by leaching uranium from natural ores and chemically treating it. Despite its name, it’s most often brown or black in color.
The powder is a concentrated form of natural uranium — about 99.72% U-238 and 0.72% U-235. It’s an important commodity because it can be stockpiled and later processed to extract and enrich U-235.
The U-235 and U-238 isotopes are chemically identical and nearly the same weight — so they’re very hard to separate. However, one of the easiest ways to separate uranium is a centrifuge.
The process starts with converting yellowcake into uranium hexafluoride (UF 6), then heating the compound into a gas. The gas then enters a centrifuge: a tall, hollow tube that spins faster than the speed of sound. The rotation pulls heavier U-238 toward the centrifuge’s outer wall while leaving more U-235 near the middle.
Cascades of centrifuges — one linked to another in long chains — further separate and concentrate each isotope. U-235-rich gas moves through an “upstream” line of centrifuges, growing until a desired level of concentration is reached. Meanwhile, U-238 moves “downstream” until it’s mostly depleted of U-235.
9. Highly enriched uranium (HEU) and low-enriched uranium (LEU)
Highly enriched uranium is any amount of uranium with 20% or more U-235 — the kind that can spur a nuclear detonation.
HEU with a concentration of 85% or more U-235 is considered “weapons-grade,” since that is enough to cause a large and efficient nuclear explosion. But it’s rarely used anymore: It most often goes into special reactors that power naval ships and submarines, can make plutonium, or create medically important isotopes (such as molybdenum-99, which can help diagnose certain heart diseases and cancers).
10. Lithium deuteride (sometimes called lithium hydride)
Lithium deuteride is a whitish salt made of one lithium atom and one deuterium atom (hydrogen-2).
It’s a key ingredient in thermonuclear weapons, also called hydrogen bombs — the most powerful type of nuclear arms. (Russia’s Tzar Bomba thermonuclear weapon, detonated in 1961, was about 3,300 times as powerful as the Hiroshima bomb in 1945.)
A thermonuclear weapon is actually two bombs in one. Energy from the first explosion is absorbed by and “ignites” the lithium deuteride, leading to fusion — where two atoms combine — and creating a plasma many times hotter than the sun.
The process also creates a lot of neutrons. These bullet-like particles can then ram into and split a lot of nearby U-238 in the bomb, vastly multiplying the weapon’s destructive energy.
A UGM-96 Trident I clears the water after launch from a US Navy submarine in 1984
11. Submarine-launched ballistic missile (SLBM)
An SLBM is a nuclear-tipped rocket that shoots out of launch tubes in an underwater attack submarine.
Unlike most land-based missiles, SLBMs are mobile and very difficult to track. Some models can fly nearly 7,500 miles, which is about 30% of Earth’s circumference. That’s plenty of range to strike any inland target from a coast.
12. Ballistic-missile submarines (SSBN or SSB)
Attack submarines that can launch ballistic missiles are known as SSBs or SSBNs. The “SS” stands for “submersible ship,” the “B” for ballistic” (as in ballistic missile), and the “N,” if present, means “nuclear” (as in powered by a nuclear reactor).
These vessels can stay underwater for 90 days and carry more than a dozen nuclear-warhead-tipped SLBMs — each of which can strike targets thousands of miles inland.
13. Complete, verifiable, and irreversible denuclearization (CVID)
CVID is the strategy that was pursued in disarming Libya of its nuclear weapons. The Trump administration pursued it in initial talks with Kim Jong Un and North Korea.
The approach allows inspectors into a country to count weapons, witness their destruction, disable nuclear reactors, prevent the development of missiles, and perform other watchdog work.
Weapons experts think North Korea will reject CVID, mostly because it’d bar the use of nuclear reactors to produce energy and rule out the development of rockets, which can launch satellites and people into space.
Experts also point out that the strategy has a nasty historical precedent: Libyan ruler Muammar Gaddafi followed through on a US-led CVID program but ultimately ended up dead in the streets.
Deterrence is the idea that if countries have nuclear weapons, the threat of an overwhelming retaliation in response to an attack will keep the peace.
In 1995, a few years after the Cold War ended, Reagan-era government officials wrote:
“Deterrence must create fear in the mind of the adversary — fear that he will not achieve his objectives, fear that his losses and pain will far outweigh any potential gains, fear that he will be punished. It should ultimately create the fear of extinction — extinction of either the adversary’s leaders themselves or their national independence, or both. Yet, there must always appear to be a ‘door to salvation’ open to them should they reverse course.”
Some nuclear weapons experts worry that deterrence will only keep the peace for so long. They also think belief in deterrence encourages the development and spread of nuclear weapons— so if and when nuclear conflict does break out, the catastrophe will be much worse.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
Despite being his fourth time seeing it, the annual Army-Navy game did not lose any significance for Cadet Jack Ray Kesti as he cheered from the stands in the frigid temperatures.
The rivalry has become an annual tradition in the Kesti household. Kesti, who hails from nearby Phoenixville, Pennsylvania, had his parents and girlfriend cheering for the Black Knights from the stands, too. Kesti’s younger brother Sam, a freshman, also attends the U.S. Military Academy and was at the game.
“Seeing people in your class and seeing them do well on the football field is a really cool feeling,” Kesti said.
Cadet Hope Moseley, a freshman, attended her first game, in which the Black Knights upended Navy 17-10 and held off a late Midshipmen surge Dec. 8, 2018. It was the No. 22 Black Knights’ third straight win over their rival.
Army Black Knights football coach Jeff Monken leads the team onto the field for the Army-Navy game in Philadelphia, Dec. 8, 2018.
(Photo by Sean Kimmons)
Army improved to 10-2 and will play Houston in the Armed Forces Bowl Dec. 22, 2018. If Army gets 11 wins in 2018, it will be its best season since 1958 when it went undefeated with one tie and finished No. 3 in the country.
Moseley said the buildup to the contest had been mounting all week. Cadets hung banners in the student barracks, played flag football games and burned a boat in anticipation of Dec. 8, 2018’s game.
“It’s a great experience of tradition,” said Moseley, a native of Belton, Texas. “Even though it’s a rivalry, it shows how strong our bond is to our country.”
Army quarterback Kelvin Hopkins, center, scores the final touchdown of the Army-Navy game in Philadelphia, Dec. 8, 2018.
(Photo by Sean Kimmons)
Moseley said she was inspired to apply to the academy by her cousin, Maj. Andrea Baker, a West Point graduate stationed in San Diego.
President Donald Trump officiated the coin toss and also briefly visited the sidelines of both teams. During the first half, Gen. James McConville, the Army’s vice chief of staff, enlisted 21 Army recruits in a special ceremony. McConville, who graduated in West Point’s Class of 1981, said he has attended “quite a few” Army-Navy rivalry games during his career, and said the contest’s significance cannot be overstated.
“It’s America’s game,” McConville said. “Why it’s special is because of the extraordinary young men and women who represent the best of America and they are here today.”
U.S. Military Academy cadets wear “3-Peat!” on the backs of their uniforms during a prisoner exchange before the Army-Navy game in Philadelphia, Dec. 8, 2018.
(Photo by Sean Kimmons)
Sporting black and red uniforms in honor of the 1st Infantry Division and its efforts during World War I, Army stormed to a 10-0 lead. After turnovers by both teams, Navy scored on a late drive midway in the fourth quarter to cut the deficit to 10-7. Army junior quarterback Kelvin Hopkins then scored on a 1-yard sneak for the go-ahead score with 1:28 left in the game.
Cadet Jay Demmy, a sophomore center on the Army rugby team, said the friendships he has formed with fellow athletes on the Black Knights football team makes the contest even more meaningful.
“There’s so much history behind this game and so much passion that to me, it’s awesome to be a part of it,” said Demmy, who hopes to join the infantry after graduation. “Playing a sport here… rugby, coming to the football games and seeing all the guys I know — all the brothers I’m going to be fighting with in the near future on the field and off the field is nice.”
Army football players jump into the stands to celebrate with fellow cadets after the Army-Navy game in Philadelphia, Dec. 8, 2018.
(Photo by Sean Kimmons)
The game takes on a larger significance, making the contest meaningful for so many nationwide, Demmy said.
Many cadets have friends attending the U.S. Naval Academy. Kesti attended high school with Midshipman Joe Ellis and the two engaged in friendly trash talking and texting each other during the game. The annual prisoner exchange, in which students from both service academies attend a semester on the opposite campuses, further extends the bond between the two schools.
“I think [the game] is about camaraderie and coming together,” Moseley said, “and knowing that even though you can have a friendly competition, in the end, we’re all fighting the same fight for the people of America.”
Gen. James McConville, the Army vice chief of staff, swears in 21 recruits during a break in the Army-Navy football game in Philadelphia, Dec. 8, 2018.
(Photo by Sean Kimmons)
Sgt. Maj. of the Army Daniel A. Dailey, clad in his Army Greens uniform, said that all soldiers can embrace the history and pageantry of the game, which was attended by celebrities such as actor Mark Wahlberg and former Dallas Cowboys great and Navy graduate Roger Staubach.
“This is a long-standing history of rivalry between two of the finest schools in America,” Dailey said. “When we’re on the battlefield, we’re all friends. But one day out of the year we come together for good camaraderie, good fun, but it is a true test of will for us and the Navy.
“This is the quintessential American football game right here, Army-Navy. It doesn’t get better than this.”
After the game, Army junior running back Rashaad Bolton proposed to his girlfriend on the field. Although Navy has struggled to a 3-10 record this season, Bolton said the Midshipmen were still a formidable foe.
Army running back Rashaad Bolton kisses his girlfriend after he proposed to her following the Army-Navy game in Philadelphia, Dec. 8, 2018.
(Photo by Sean Kimmons)
“Navy’s a well-coached team,” Bolton said. “We just fought. Our coaches did a great job preparing us these three weeks.”
Army coach Jeff Monken, who improved to 43-30 during his five seasons at Army, has credited the West Point student section with providing a much-needed boost to the players. There has been a resurgence of the Army football team, which has gone 20-5 since ending Navy’s 14-game winning streak in 2016.
“When the football team’s playing well I feel like it brings our school together more, because you get that unity and you get fired up,” Demmy said. “Coach Monken preaches that we’re the 12th man on the field. Having that good student section, having that uproar brings fire to the people on the field.”
John Browning’s most famous creation, at least in the United States, is the ubiquitous Model 1911. It’s everywhere, and probably within reach of well more than a few people reading this article. The 1911’s active service life in military organizations is pretty much over. However, another of Browning’s continues to serve — the Model 1919 Machine Gun.
The Model 1919 was essentially an air-cooled Model 1917. It was chambered in the powerful and effective .30-06 round, modernized following extensive ballistic testing in the post-World War I years. Unlike most ground-mounted WWI-era machine guns, the 1919 was air cooled, had a heavier barrel, and was easier to maintain under combat conditions than its water-cooled cousins.
It didn’t require all the accouterments of a water-cooled gun, such as a bulky water jacket, water, and a condensing can. The 1919 was originally fed by a cloth belt and designed for vehicles—or a very solid (and heavy) tripod. It had a reasonable rate of fire at 500 rounds per minute on average. By WWII, it was the standard U.S. light machine gun, serving alongside Browning’s M1917 and the legendary Browning M2 HMG.
Like most of Browning’s designs, the 1919 was very reliable for the day and age in which it was produced (insert Glock joke here). It was also apparent early on that the 1919 was versatile. By the end of WWII, it was mounted on tanks, in aircraft, and found in various calibers, including .303 British. It served in virtually every Allied army, and if you dig hard enough, you can even find pictures of enemy troops using captured 1919s. It was very effective against personnel, and when loaded with armor-piercing ammunition, it was also effective against thin-skinned armored vehicles.
In the air, the modified M1919 was called the ANM2. This variant was specifically modified for aerial warfare, boasting a blistering rate of fire at 1,200-plus rpm. The improvements in aircraft technology and design during the period meant rifle-caliber machine guns were only effective when their throw weight could be boosted by increased rates of fire, and by mounting anywhere from two to six of the guns. Feeding them with the most destructive type of ammunition available, generally one form or another of API-T (Armor Piercing Incendiary Tracer), helped.
While the ANM2 served valiantly, it was not as effective as its Browning M2 brethren as an anti-aircraft machine gun. In the decade before WWII, fighter aircraft were increasingly fitted with heavier machine guns, generally .50 BMG Browning variants in the U.S., or 20mm (or larger) cannons in Europe. It wasn’t the fault of the ANM2 that it was less effective against aircraft; it was the fault of the ordnance officers who decided to mount it in aircraft in the first place.
In the infantry role, the M1919 was successful within its limitations. Keep in mind the M1919 was designed in an era when the belt-fed machine gun was essentially a static weapon. The exception to this trend at the time was the MG08/15, which was an intentional departure designed specifically to make the infantry machine gun more portable and useful. By WWII, the MG08/15 concept (a highly mobile, portable general-purpose machine gun [GPMG]) evolved into the MG34 and eventually the MG42 in German service. This is where the M1919’s combat failings became apparent.
Although accurate, reliable, and possessing a good sustainable rate of fire, it was clumsy and awkward on a mobile battlefield compared to the MG34 and MG42. The tripod was large and unwieldy, and it was not always easy to emplace. U.S. troops frequently had to improvise with the 1919, more or less propping it up against or on the WWII equivalent of “a rock or something” when the tripod simply wouldn’t work under the conditions.
As a result, the M1919A6 was developed. This variant added a buttstock and a bipod to the M1919 in attempt to turn it into a light machine gun, more like the MG34 or MG42. However, it was still about a pound heavier than the standard M1919 without the tripod, weighing in at 32 pounds. It was an improvised solution akin to adding a bipod and a buttstock to a boulder. It was still awkward; although it was a bit less unwieldy and more stable, it appeared far too late in the war to have much of an impact.
Again, don’t blame the gun, blame the ordnance weenies.
Until the M60 (a less-than-fantastic GPMG, but a product of the “made here” school of ordnance development) was made widely available during the Vietnam War, the U.S. infantry were saddled with the M1919 and M1919A6 combination.
As a vehicle-mounted machine gun, the 1919 excelled. As a matter of fact, it does such a good job it’s still in service in many places across the globe. It’s been modernized, now using disintegrating link belts instead of old-fashioned cloth belts. Most 1919s still in service were converted to 7.62 NATO, as well, to ease the strain on logistics. Notably, however, one 1919 variant, the M37 Coaxial MG, was somewhat notoriously problematic, again mostly because some people just can’t resist fixing something that works.
There have been some interesting variants of the 1919 over the years. Several ANM2s were converted into a variant called the Stinger. The Stinger was basically a scavenged aircraft-mounted gun with a bipod, carry handle, and buttstock. The extremely high rate of fire was welcomed (for the six or so guns which appear to have actually made it into combat), but the Stinger only served in limited numbers. Its primary claim to fame was being the weapon “Terrible” Tony Stein used during the combat action that earned him a Medal of Honor on Iwo Jima.
If you ever get a chance to fire a ground-mounted M1919, we highly recommend you do so. As it was originally designed, it’s accurate, reliable, and very easy to shoot. As a machine gun for a fixed position, it can easily hold its own against any gun of its era. It’s easy to manipulate, strip, and clean, and it’s very robust in its most common and most current variant, the 1919A4. However, remember it’s almost a 100-year-old design; don’t expect it to perform like a modern machine gun.
Look, airmen are technically people. That’s why we can’t slap a fence around the Air Force, call it a zoo, and call the day done. Especially since we need a few of them to fly close-air support and whatever else it is that they do. So, the boys in blue tiger stripes are going to keep wandering around, quoting Nietzsche (even if they are finally getting rid of those stripes).
If you are forced to interact with one of them, here are some pics you can drop on the ground and escape while they argue the semantics or parse the meaning of it:
Remember: They’re more trained for large airbases than small unit tactics.
Keep them inside and they won’t rub their coffee grounds into their helmet like that.
All that fancy radar and signals intercept equipment, and this is what we get.
This does, however, really make me want to get into meteorology.
In her defense, she’s probably well schooled in PowerPoint.
You’re probably gonna have to just carry her out of combat, Sgt. Joe.
Must suck to be forced to use that internet for so much targeting and so little streaming.
Do it for Khaleesi, airmen.
There is a rumor that the Air Force has a shortage of elbow grease.
That poor Marine probably doesn’t even know that the task is never getting done by that junior airman.
Airmen are so prissy about teeth extractions and medical care.
They probably use anesthetic and hand sanitizer, too.
Most airmen don’t embody the “whole airman concept.”
Though, in their defense, they don’t all look like they ate a whole airman.
Shouldn’t the plane get its bombs at home and drop them while they’re out?
Oh crap, now I’m parsing the memes like some sort of over-educated airman.
President calls for Space Force. Air Force subsumes Space Force concept. Airmen check Stargate IDs.
Would be the coolest gate guard duty in the universe, though. Might even see some three-breasted women or something.
To be fair, airmen aren’t the only folks who will fall to their own forms.
All Department of Defense forms are ridiculously horrible.
I could use a snack. And a nap.
Crap. Does the Air Force really have snack time? This is backfiring. I want to be an airman now. AIR POWER!
Seriously, why can Gru never get his slides right?
There’s no way an Air Force version of Gru would struggle with slides, though.
The Air Force version of Uber Eats is abysmal.
Worldwide delivery, but the deliveries might not be on time, complete, or structurally sound.
Maciejewski is also a 1st Lt in the Army Reserves and serves as the Executive Officer of the 303rd Military Police Company, Jackson, MI. We Are The Mighty interviewed Maciejewski following his heroic actions.
WATM: How did you feel when you arrived on the scene?
Maciejewski: I’m human just like everyone else. I have those same human emotions and feelings that everyone else has, yet, I need to set that aside. Even though I’m nervous responding to these types of calls, I can’t let the family see that. They need to have the trust in me that I’m going to make things better, that I am a professional, and I will fix the problem. If I respond in a frantic, excited manner, that creates even more chaos on the scene. Maintaining a steady calm nerve was paramount to everyone’s safety.
WATM: What was your thought process at the scene?
Maciejewski: I have many different thoughts running through my head just trying to respond to the scene, for example, what is the fastest route to the call, listening for dispatch information over the radio, operating my patrol car safely with emergency lights activated, reading dispatch notes on my computer, how am I going to handle the call when I arrive, basically creating a game plan of priorities of work in my head, are just some things I am running through my head going to high intensity calls like these.
Once on scene, however, as I saw the family rushing to my vehicle, training immediately kicked in. I recognized the baby not breathing and went through steps to clear that airway as fast as possible. In the video you can see the family all frantic, moving around me, mom grabbing my arms, however, I can’t acknowledge that commotion. I need to fix the problem at hand but simultaneously trying to console the family that everything will be ok.
WATM: What happened after you handed the baby over to the firefighters?
Maciejewski: At that point, I had already recognized the baby was crying and breathing on her own. I felt a sense of joy in me when the firefighters wrapped her in a blanket, checked her vitals in the ambulance and returned outside the ambulance with the infant in much better condition. I could see her face was no longer purple, she was gaining the color in her face back and almost appeared as if nothing happened. She was so relaxed.
After the news from the firefighters came back the baby was much better, mom collapsed to the ground again requiring us to then tend to her aid. She eventually regained consciousness and was reunited with her baby in the ambulance to both be transported to the local hospital for further evaluation. I spoke with dad who was very distraught. He just wanted to see his wife and baby in the ambulance and be with his family before going to the hospital. Once he saw they were both going to be ok, he thanked all the firefighters and police officers on scene for taking the best care of his family.
WATM: How are you feeling now? What sort of responses have you been getting from the community and beyond?
Maciejewski: I still feel a great sense of joy that everything worked out in the end. I’m being hailed as a hero across the nation, however, in my humble opinion, I was placed on that scene for a reason: to preserve life. Simply put, I was just doing my job as I was trained to do. Being in the spotlight and having so much outpouring of love and support from people across the world is something indescribable. There are Chiefs of Police from various jurisdictions across the country reaching out to thank me for a job well done.
WATM: Is there anything else you would like readers to know?
Maciejewski: Stories like this happen every day. Police officers across the world deal with these intense, life-altering situations every day, but they’re not always caught on camera. We don’t do the job for fame or seeking recognition. We take the oath, we wear the badge, to protect the citizens of our great nation.
Richard Arvin Overton was already 35 years old when he fought at Pearl Harbor. Now, 73 years after the end of World War II and his service in the Pacific Theater, the 112-year-old is alive and kicking. Today, the City of Austin and its Mayor, Steve Adler, even came out to wish America’s oldest veteran a happy birthday.
Find out how to live your life like Richard Overton lived his.
Overton is still completely independent — he lives on his own, walks where he wants (albeit with the aid of a cane), and drives where he needs to go. He enjoys cigars, good whiskey, and dating his “lady friend.”
That also happens to be Richard Overton’s big, anti-aging secret, which he shared over a few drinks with We Are The Mighty’s Orvelin Valle during the celebration.
“The secret to life,” Overton says, “is Scotch and cigars.”
You’ll never catch Overton without a pocket full of cigars and, while you might think they’re hazardous to his health and well-being, it seems they’re doing more good than harm. He passes every medical test the doctors (and the DMV) can throw his way.
Although he drives himself because he thinks too many people around his neighborhood drive crazily, he isn’t afraid of anything, even at his advanced age. He even remarked that he feels completely comfortable sleeping with his doors unlocked at night.
“You see a soldier with a gun,” he once told National Geographic (while holding his issued M1 Garand rifle), “you don’t see him turn around and come back this way.”
But that stress-free life starts with a good cigar or twelve. He often smokes a dozen or more per day. He doesn’t inhale, though, saying there’s no point.
“Forget about swallowing it,” Overton says. “There’s no taste to it. It just makes you cough.”
Not inhaling his cigars is what he calls “the healthy way.” This lifestyle also includes a diet of milk, fish, corn, and soup. But the 112-year-old vet also starts his day with about four cups of coffee and ends each by eating butter-pecan ice cream.
And, sometimes, he adds whisky to the mix
He doesn’t spend his money on buying things he doesn’t need and he definitely doesn’t use credit cards. He’s been driving the same truck for decades, which he paid for with cash. Still, it’s a far cry from his first car – a Ford Model T.
To live like America’s oldest veteran, just live a stress-free life. Start with the simple pleasures, like ice cream, whisky, and cigars. If you don’t take his advice, that’s fine. As he says, “that’s your bad luck.”