For those who aren’t familiar with the Army rank structure, there are three directions an Army specialist can go in terms of rank change. They can be demoted to private first class, losing responsibilities and pay. They can be promoted to sergeant, gaining responsibilities and pay.
Or, a third direction, they can be “laterally promoted” to corporal, where they gain lots of responsibilities but no pay.
This is why corporal is the worst rank in the Army.
An Army corporal is sent to roll up ratchet straps near trees while an Army specialist is paid the same to take a photo of them doing it.
(U.S. Army Spc. Andrew J. Washington)
See, corporal is an enlisted level-4 rank, equal in pay to a specialist. This is a holdover from back in the day when the Army had two enlisted rank structures that ran side-by-side. There were specialists-4, specialists-5, 6, 7, 8, and 9. Specialists got the same pay as their noncommissioned officer equivalents. So, a specialist-9 got paid the same as a sergeant major.
Specialists were expected to be experts in a specific job, but weren’t expected to necessarily lead other soldiers. So, it was unlikely that they would pull duties like sergeant of the guard, and they were only rarely appointed to real leadership positions. The rest of the time, they just did their jobs well and got left alone.
But specialists were slowly whittled down in the 1960s-80s. After 1985, only one specialist rank remained. It was paid at the E-4 level, same as a corporal.
Today, specialist is the most common rank in the Army.
But some specialists are so high-speed, so good at their jobs, so inspiring to their fellow troops, that the Army decides it must have them as leaders now. And, if they aren’t eligible for promotion to E-5 just yet, then we’ll just laterally promote them to corporal and get them into the rotation anyway.
So, the soldier gets added to the NCO duty rosters, gets tapped for all sorts of work details that pop up, and gets held to a higher standard than their peers, even though they’re drawing the same paycheck every month.
They can even be assigned to positions which would normally go to a sergeant, like senior team leader.
“All of the work, none of the pay.”
Meanwhile, their specialist peers are so well known for cutting up that the symbol of their rank is known as the “sham shield,” a play on the Army slang of “shamming” (skipping work, known as skating in the Navy).
The Army needed someone to go out and take photos of a bunch of guys getting hit with CS gas in the middle of the desert. They, of course, turned to a corporal.
(Side note: the rest of the occupations in the top 5 most stressful jobs have an average salary of ,562. E-4s pull in about ,000 depending on their time in service.)
A U.S. Army specialist is “promoted” to corporal, a promotion that he will never regret.
(U.S. Army Staff Sgt. Christina Turnipseed)
Next, when corporals are laterally promoted, they only move up the feeding chain a tiny amount, moving from specialists to guys who are ostensibly in charge of specialist, but still below all other NCO, officers, and warrant officers.
And we said ostensibly for a reason. Specialists aren’t known for always caring what a corporal says. Or what anyone else says, but corporals get particularly short shrift. And this is especially bad for corporals who are appointed to that rank in the same unit they were specialists in. After all, that means they have to now direct the guys they were hanging out with just a few days or weeks before, all without the benefit of a more concrete promotion.
Army Cpl. Quantavius Carter works as a movement noncommissioned officer, logging all the measurements necessary for the paperwork to ship the vehicle.
(U.S. Army Sgt. Elizabeth White)
But their job is important, and most corporals are appointed to that rank because higher leadership knows that they’ll take it seriously. Like we mentioned, corporals can be assigned to jobs that would normally require a sergeant. They sent to supervise everything from crap details to automatic weapons teams.
They are, truthfully, part of the backbone of the Army, but they still often have to share barracks rooms with drunk specialists.
So, yeah, buy your local corporal a drink when you get a chance, because they’re stuck in a tough job with no extra pay and little extra respect. Worst rank in the Army.
U.S. Air Force Master Sgt. Natasha Lindblom looks over citzenship study test.
Many people dream of becoming a U.S. citizen. The process is notoriously arduous and taxing, but the most nerve-wracking part for many is taking the U.S. citizenship test. It’s so difficult, in fact, that according to NBCNews, only 36% of American citizens could pass the test. That’s like around the same percentage of students at Arizona State that could pass an STD test. Yikes.
Some of the foundational, basic, questions are reportedly missed by as much as 60% of the population. For instance, only 39% of American test takers know how many justices serve on the supreme court. If you’re thinking, “Uhhh… I dunno, like 50…Or 12?” You’re probably in good company. You’re also wrong. It’s nine. That’s a freebie—follow along, and then plug your answers into the key at the bottom to see how well you fare.
If you get at least six correct you pass. No peeking!
How many members are in the House of Representatives?
A.) 435 B.) 350 C.) 503 D.) 69
Who is in charge of the executive branch?
A.) The President B.) Secretary of Defense C.) Speaker of the House D.) Majority Whip
What piece of land did the United States purchase from France in 1803?
A.) Alaska Purchase B.) Gadsden Purchase C.) Louisiana Purchase D.) Hawaii
How many U.S. senators are there?
A.) 50 B.) 100 C.) 200 D.) 400
Stolen by Nicolas Cage in 2004… and 2007?
When was the constitution written?
A.) 1692 B.) 1802 C.) 1776 D.) 1787
How many amendments does the constitution have?
A.) 27 B.) 25 C.) 20 D.) 14
Who was the President during World War I?
A.) Calvin Cooldige B.) Woodrow Wilson C.) Franklin D. Roosevelt D.) Harry Truman
Under the constitution, which of these powers does not belong to the federal government?
A.) Print money B.) Declare war C.) Ratify amendments to the Constitution D.) Make treaties with foreign powers
U.S. senate floor.
We elect a U.S. senator for how many years?
A.) Six years B.) Four years C.) Eight years D.) Two years
The Federalist Papers supported the passage of the U.S. constitution. Which of these men was not one of the authors?
A.) Alexander Hamilton B.) John Adams C.) James Madison D.) John Jay
Spc. Jorge Vilicana takes general Army test
(Capt. David Gasperson)
If you got at least 6/10 right—congrats you passed the U.S. citizenship test! If you didn’t—you can always just lie in comments section and say you did!
More pieces from an F-35 stealth fighter that disappeared in the Pacific have been found, the Japanese defense minister revealed May 7, 2019.
A Japan Air Self-Defense Force F-35A Lightning II Joint Strike Fighter piloted by Maj. Akinori Hosomi mysteriously vanished from radar on April 9, 2019. The day after the crash, pieces of the tail were found floating on the surface of the water, but the rest of the fifth-generation fighter was nowhere to be found.
The fighter, believed to be lying somewhere on the ocean floor, has been missing for weeks, despite the best efforts of the US and Japanese militaries to find it.
Japanese Defense Minister Takeshi Iwaya announced May 7, 2019, that parts of the flight recorder and cockpit canopy had been discovered at an unspecified location on the ocean floor, CNN reported. The flight recorder was retrieved by a US Navy salvage team dispatched to assist in the search.
First operational F-35A Lightning II presented to JASDF’s 3rd Air Wing at Misawa Air Base.
(U.S. Air Force photo by Tech. Sgt. Benjamin W. Stratton)
The defense minister said the flight recorder is in “terrible” condition. Critical memory components are reportedly missing, meaning that key data about the crash, the first for an F-35A, may be unavailable. Exactly what happened to the stealth fighter remains a mystery.
The downed F-35, which was built by Lockheed Martin but assembled by Mitsubishi Heavy Industries. Ltd., is one of a growing fleet of Japanese stealth fighters. In response to the crash, Japan grounded its remaining F-35s. They will remain on the ground while the related investigation is ongoing.
Japan currently has 12 F-35s, but it has another 147 stealth fighters on order. B variants with that need little runway to take off and land are expected to eventually serve on Japanese light aircraft carriers while the A variant will become the primary fighter of the Japanese air force.
The search for the missing fighter and its pilot is expected to continue.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
On the morning of July 4, 1989, alarm bells blared at Soesterberg Air Base in the Netherlands, home of the US Air Force’s 32d Tactical Fighter Squadron.
Within minutes, a pair of armed F-15 Eagles, manned by Capts. J.D. Martin and Bill “Turf” Murphy, were launched on a scramble order. Their mission was to intercept what appeared to be a lone fighter making a beeline from Soviet-controlled airspace into Western Europe.
Though the Cold War’s end was seemingly not too far away, tensions still ran high between the two sides of the Iron Curtain, and any incursion by an unidentified aircraft would need to be responded to swiftly.
As JD and Turf were vectored in on the aircraft, now identified as a Soviet MiG-23 Flogger supersonic fighter, ground controllers notified them that all attempts to contact the inbound jet had failed and the intentions of its pilot were unknown and potentially hostile.
When they got close the the Flogger, the two Eagles were primed and ready to shoot down their silent bogey if it didn’t respond and carried on its flight path. But when the two F-15 pilots closed in on the aircraft to positively identify it, they noticed that the pylons underneath the Flogger — used to mount missiles and bombs — were empty.
By then, the Flogger was firmly in Dutch airspace, casually flying onward at around 400 mph at an altitude of 39,000 ft.
What JD and Turf saw next would shock them — the Flogger’s canopy had been blown off and there was no pilot to be found inside the cockpit. In essence, the Soviet fighter was flying itself, likely through its autopilot system.
After contacting ground control with this new development, the two Eagle pilots were given approval to shoot down the wayward MiG over the North Sea, lest it suddenly crash into a populated area. Unaware of how long the pilotless MiG had been flying, and battling poor weather which could have sent debris shooting down the MiG into nearby towns, JD and Turf opted to let the jet run out of fuel and crash into the English Channel.
Instead, the aircraft motored along into Belgium, finally arcing into a farm when the last of its fuel reserves were depleted. Tragically, the MiG struck a farmhouse, killing a 19-year-old. Authorities raced to the site of the crash to begin their investigation into what happened, while the two F-15s returned to base. French Air Force Mirage fighters were also armed and ready to scramble should the MiG have strayed into French airspace.
Details of what led to the loss of the Flogger began to emerge.
As it turns out, the Soviet fighter had originated from Bagicz Airbase — a short distance away from Kolobrzeg, Poland — on what was supposed to be a regular training mission. The pilot, Col. Nikolai Skuridin, ejected less than a minute into his flight during takeoff when instruments in the cockpit notified him that he had drastically lost engine power. At an altitude of around 500 ft, it would be dangerous and almost certainly fatal if Skuridin stayed with his stricken fighter, trying to recover it with its only engine dead. The colonel bailed out with a sense of urgency, assuming the end was near.
But as he drifted back down to Earth, instead of seeing his fighter plummet to its demise, it righted itself and resumed climbing, its engine apparently revived.
The ensuing debacle proved to be thoroughly embarrassingfor the Soviet Union, which was forced to offer restitution to Belgium and the family of the deceased teenager. By the end of the MiG’s flight, it had flown over 625 miles by itself until it ran out of fuel and crashed.
If it seems odd that the CIA compiled medical data for a man six months after he killed himself, they didn’t exactly do it to help his doctors make sound decisions about his care. The cyanide capsule, gunshot wound to the head, and cremation had sort of made all that moot. Instead, the report opens with an explanation for its compilation:
The information is being published in order to provide: a. medical data useful for the identification of Hitler or his remains; b. further material for the debunking of numerous Hitler Myths; c. the knowledge needed to expose those frauds who in later years may claim to be Hitler, or who may claim to have seen or talked to him. d. research material for the historian, the doctor, and the scientist interested in Hitler.
They probably didn’t guess that future internet writers would use it to describe Hitler’s butthole. But, here goes:
Are you imagining his anus? You can imagine his anus. It’s for history.
(Bundesarchiv Bild, CC BY-SA 3.0)
Hitler was, quite literally, a tight ass, with doctors noting, “No disturbance of vesical or rectal sphincter tone, and no evidence of prostatic pathology or hemorrhoids.” Yup, Hitler had a normal butt. Note that “tone” in the preceding text referred to the strength of the rectum, not its color. So we can’t say definitively whether or not Hitler bleached. Also, we still don’t know exactly how tight Hitler’s butt was since Dr. Morell neglected to do an “anal flex” test.
But the sphincter was capable of holding in his stool and stretching appropriately to accommodate the load until his voluntary relaxation and release. He did need anti-gas pills and, in May 1944, his doctor expressed worry about whether or not Hitler’s defecation was still regular.
(BTW, if you don’t want people making jokes about your bum and bowel movements more than seven decades after your death, maybe don’t be a genocidal a–hole. #sorrynotsorry.)
Don’t know why him being brown makes him less intimidating to me, but it does.
(Bundesarchiv Bild, CC BY-SA 3.0)
Fuhrer had some rank pee and “bronze” skin with uncertain causes
Doctors disagreed about what, exactly, was causing Hitler to pee brown from time-to-time. Two doctors thought it was caused by poisoning from years of taking strychnine as a component of some of his medication. Strychnine, in addition to medical uses, is a poison often used to kill rodents.
Dr. Morell, the same one who failed to do the anal flex test, was of the opinion that the discoloration and gastric pain was caused by bad flow of bile, particularly around the gall bladder.
Either way, the intermittent discoloration of the urine sometimes presented alongside a bronzing of the skin similar to jaundice. Yup, yellow skin and brown pee. Superior race indeed.
He had swelling of the liver and kidney as well as eczema tied to diet
Hitler was a vegetarian but didn’t take proper steps to ensure he was getting all of his nutrients despite the lack of meat. Doctors believe that’s what led to swelling of his stomach, the left lobe of his liver, and his right kidney, as well as a spot of eczema on his left leg.
The nutrient imbalance led to a bacterial imbalance that was discovered after a fecal examination revealed the presence of “dysbacterial flora in the intestinal tract.” Hitler had to take some bacterial pills that balanced everything back out, which is a shame, because we would prefer to think of him spending the entire war filled with abdominal pain. Luckily, the condition did resurface from time to time.
Really wish Hitler would just die. #popularopinions
(Karl-Ludwig Poggemann, Flickr, CC BY 2.0)
Hitler required heart stimulants and oxygen
At multiple times, including the last year of his life, Hitler was prescribed heart stimulants with glucose and in 1944 this was combined with oxygen treatments. Hitler’s issues were tied to his poor diet.
The medication and lifestyle changes seemed to have positive effects when the instructions were followed, but it seemed like the leader may have had some other stuff on his mind because he didn’t always seem to follow the medical instructions.
He might have been working towards a heart attack
Hitler had some electrocardiograms done in the final years, and doctors found signs of “rapidly progressive coronary sclerosis.” Basically, plaque was quickly filling his arteries. Coronary sclerosis often results, eventually, in a heart attack. Combined with his other heart problems mentioned above, chances were high that Hitler didn’t have much time left.
Couldn’t have given out a little faster, heart?
See that big ‘ole nose? That honker could barely get any air through it.
(Bundesarchiv Bild, CC BY-SA 3.0)
Chronic sinus inflammation
The dictator often suffered from “catarrhal inflammation and obstruction of the nasal passages.” Basically, dude got swollen sinuses and sinus pressure a lot. Apparently, he should’ve sounded a bit more nasally and congested in Inglorious Basterds.
Hitler shows off his tiny labia in front of the Supreme Court in Leipzig.
(Hoffmann, Heinrich, CC BY-SA 3.0)
Hitler had small labia
According to the CIA’s summary, Hitler’s “Labia were normally red in color and rather small.” We would love to say that this is a reference to the fuhrer having some unexpected genitalia, but doctors were actually just referring this the fuhrer’s pretty standard mouth parts. Yeah, males and females have oral labia.
When they finally arrived, they were greeted with cheers. The troops of the MACV Compound had just repelled an enemy surge within their walls.
“They had been through hell, and they thought we were there to save the day, but little did we know the numerical numbers of NVA there,” Ligato said in the video below.
Ligato and his ill-equipped company were walking into a deathtrap against nine battalions of highly-trained North Vietamese soldiers, outnumbering each man by a few hundred.
“Most of us thought we’d never get out,” Ligato said.
The odds were against them, but miraculously, they pulled through. Ligato sums up the company’s success with this quote:
Americans Adapt. We Improvise. The most ferocious fighting machine the world has ever seen is a 19-year-old pissed off Marine. Because you’ll take that kid from Detroit or Mississippi and you’ll train him in Marine Corps boot camp, and you’ll put him in a situation that’s foreign to him, and he will adapt and improvise and become that situation and deal with it.
Watch John Ligato tell his harrowing experience in this 3-minute American Heroes Channel video:
From a faith-based U.S. Army unit to an entire “ghost” army, take a look at the four most unusual military units of all time.
An inflatable tank, styled after the M4 Sherman (Wikimedia Commons)
The Ghost Army
Inspired by a trick that the British pulled in North Africa, the summer of 1944 found soldiers of the U.S. Army undertaking a very unusual task – building a phantom army. To achieve this goal, the Army gathered artists, designers and sound effects experts to encourage confusion behind enemy lines. The 23rd Headquarters Special Troops is better known as the Ghost Army because it used inflatable rubber tanks and jeeps, along with sound effects and subterfuge to deceive Germans during WWII.
The 23rd took part in more than 20 missions, many of which used illusion and artistry that rivals any Hollywood set. Painters and illustrators worked collaboratively to design uniforms and create dummy vehicles. Sound engineers helped by broadcasting phony radio traffic and mimicked the sounds of an army on the move. There were even actors hired to spread misinformation that would hopefully get picked up by Nazi spies.
The Germans fell for it, and the ruse worked. With the Ghost Army in place, Germany had no clear idea of the US forces’ actual size. The Ghost Army was so convincing that they were even plugged a hole in General Patton’s lines for several days without being discovered. It wasn’t until 1996 that the Ghost Army’s contribution became public knowledge, and by then, many of its members had gone on to illustrious careers in art and design.
The Monuments Men
This particular unit was tasked with attempting to preserve Europe’s cultural heritage during WWII. The Monuments, Fine Arts and Archies unit included handpicked art historians, museum curators and academics who skirted the front lines of combat to prevent historically essential buildings and art from being destroyed.
Members from the unit created special maps for the Allies to ensure that culturally significant structures weren’t inadvertently destroyed as the Allies pushed deeper into Europe. To do this, the unit drew plans that showed aircraft pilots where to avoid on bombing runs. While the war was in full swing, the Monuments Men even set about restoring landmarks that were already damaged.
As the war wound down, the unit shifted its focus from preservation to rescue. It tracked down and recovered sculptures and paintings looted by the Nazis. As the Nazi regime crumbled, Monuments Men found thousands of pieces of art stolen from Jewish families and museums. Most of these pieces of art were placed deep in salt mines and castles to avoid detection. The Monuments Men did their part in finding the pieces, and then after the war, the artwork was returned to its original owners.
The Mormon Battalion
Composed entirely of Latter Day Saints service members, the Mormon Battalion has the unique and unusual honor of being the only faith-based battalion in all of U.S. Army history. When negotiations between Brigham Young’s church leaders and the US military reached an impasse, it was suggested that a battalion be formed made up of all Mormons. The Mormons hoped their unit might pave the way for their planned exodus to the American West by providing training, equipment and pay. But President Polk saw it as a way to make allies of the Latter Day Saints.
The 500-person battalion never saw any combat, but it became one of the most well-traveled units in all of American history. The service members marked the start of their service by making a grueling might from Iowa through indigenous lands all the way to Santa Fe. From there, they marched on through the untamed lands of Arizona and then to southern California. Once in SoCal, the battalion performed garrison duty in both San Diego and Los Angeles.
Just two years after being formed, the battalion was retired in July 1847. Most of its members headed back north to the Utah Territory to join the rest of their religious pioneers.
King Frederick William I (Wikimedia Commons)
The Potsdam Giants
Everyone always wants to have the biggest army, but for King Frederick William I of Prussia, the idea of having the strongest soldiers in the world was an obsession. At the start of the 18th Century, the monarch tried to gather the tallest troops he could find in all of Europe and create an elite regiment called the “Potsdam Giants.” Records indicate that several of the service members were over seven feet tall.
To entice this elite unit, King Willian spent a fortune hiring tall soldiers from other militaries in the world. He even instructed his own covert agents to conscript unusually tall civilians into the unit. At one point, William tried to encourage his tallest soldiers to marry tall women. The unit eventually disbanded, but not before William managed to spend a significant amount of money.
From a ghost army to a unit dedicated to preserving history, these four units prove that there’s a lot more to being part of a military than just standing in formation.
Developed over the course of decades, GPS has become far more ubiquitous than most people realize. Not just for navigation, its extreme accuracy in time keeping (+/- 10 billionths of a second) has been used by countless businesses the world over for everything from aiding in power grid management to helping manage stock market and other banking transactions. The GPS system essentially allows for companies to have near atomic clock level precision in their systems, including easy time synchronization across the globe, without actually needing to have an atomic clock or come up with their own systems for global synchronization. The problem is that, owing to a quirk of the original specifications, on April 6, 2019 many GPS receivers are about to stop working correctly unless the firmware for them is updated promptly. So what’s going on here, how exactly does the GPS system work, and who first got the idea for such a system?
On Oct. 4, 1957, the Soviet Union launched Sputnik. As you might imagine, this tiny satellite, along with subsequent satellites in the line, were closely monitored by scientists the world over. Most pertinent to the topic at hand today were two physicists at Johns Hopkins University named William Guier and George Weiffenbach.
As they studied the orbits and signals coming from the Sputnik satellites the pair realized that, thanks to how fast the satellites were going and the nature of their broadcasts, they could use the Doppler shift of the signal to very accurately determine the satellite’s position.
A replica of Sputnik 1.
Not long after, one Frank McClure, also of Johns Hopkins University, asked the pair to study whether it would be possible to do this the other way around. They soon found that, indeed, using the satellite’s known orbit and studying the signal from it as it moved, the observer on the ground could in a relatively short time span determine their own location.
This got the wheels turning.
Various systems were proposed and, in some cases, developed. Most notable to the eventual evolution of GPS was the Navy’s Navigation Satellite System (also known as the Navy Transit Program), which was up and running fully by 1964. This system could, in theory, tell a submarine or ship crew where they were within about 25 meters, though location could only be updated about once per hour and took about 10-15 minutes to acquire. Further, if the ship was moving, the precision would be off by about one nautical mile per 5 knots of speed.
Another critical system to the ultimate development of GPS was known as Timation, which initially used quartz clocks synchronized on the ground and on the satellites as a key component of how the system determined where the ground observer was located. However, with such relatively imprecise clocks, the first tests resulted in an accuracy of only about 0.3 nautical miles and took about 15 minutes of receiving data to nail down that location. Subsequent advancements in Timation improved things, even testing using an atomic clock for increased accuracy. But Timation was about to go the way of the Dodo.
By the early 1970s, the Navigation System Using Timing and Ranging (Navstar, eventually Navstar-GPS) was proposed, essentially combining elements from systems like Transit, Timation, and a few other similar systems in an attempt to make a better system from what was learned in those projects.
Fast-forward to 1983 and while the U.S. didn’t yet have a fully operational GPS system, the first prototype satellites were up and the system was being slowly tested and implemented. It was at this point that Korean Air Lines Flight 007, which originally departed from New York, refueled and took off from Anchorage, Alaska, bound for Seoul, South Korea.
What does this have to do with ubiquitous GPS as we know it today?
On its way, the pilots had an unnoticed autopilot issue, resulting in them unknowingly straying into Soviet airspace.
Convinced the passenger plane was actually a spy plane, the Soviets launched Su-15 jets to intercept the (apparently) most poorly crafted spy plane in history — the old “It’s so overt, it’s covert” approach to spying.
A Soviet Sukhoi Su-15 interceptor.
Warning shots were fired, though the pilot who did it stated in a later interview, “I fired four bursts, more than 200 rounds. For all the good it did. After all, I was loaded with armor piercing shells, not incendiary shells. It’s doubtful whether anyone could see them.”
Not long after, the pilots of Korean Air 007 called Tokyo Area Control Center, requesting to climb to Flight Level 350 (35,000 feet) from Flight Level 330 (33,000 feet). This resulted in the aircraft slowing below the speed the tracking high speed interceptors normally operated at, and thus, them blowing right by the plane. This was interpreted as an evasive maneuver, even though it was actually just done for fuel economy reasons.
A heated debate among the Soviet brass ensued over whether more time should be taken to identify the plane in case it was simply a passenger airliner as it appeared. But as it was about to fly into international waters, and may in fact already have been at that point, the decision was made to shoot first and ask questions later.
The attacking pilot described what happened next:
“Destroy the target…!” That was easy to say. But how? With shells? I had already expended 243 rounds. Ram it? I had always thought of that as poor taste. Ramming is the last resort. Just in case, I had already completed my turn and was coming down on top of him. Then, I had an idea. I dropped below him about two thousand metres… afterburners. Switched on the missiles and brought the nose up sharply. Success! I have a lock on.
Two missiles were fired and exploded near the Boeing plane causing significant damage, though in a testament to how safe commercial airplanes typically are, the pilots were able to regain control over the aircraft, even for a time able to maintain level and stable flight. However, they eventually found themselves in a slow spiral which ended in a crash killing all 269 aboard.
As a direct result of this tragedy, President Ronald Reagan announced on Sept. 16, 1983, that the GPS system that had previously been intended for U.S. military use only would now be made available for everyone to use, with the initial idea being the numerous safety benefits such a system would have in civil aviation over using then available navigation tools.
This brings us to how exactly the GPS system works in the first place. Amazingly complex on some levels, the actual nuts and bolts of the system are relatively straightforward to understand.
To begin with, consider what happens if you’re standing in an unknown location and you ask someone where you are. They reply simply — “You are 212 miles from Seattle, Washington.”
You now can draw a circle on a map with radius 212 miles from Seattle. Assuming the person giving you that information is correct, you know you’re somewhere along that circular line.
Not super helpful at this point by itself, you then ask someone else, and they say, “You are 150 miles from Vancouver BC.” Now you’re getting somewhere. When you draw that circle on the map, you’ll see it intersects at two points. You are standing on one of those two points. Noticing that you are not, in fact, floating in the ocean, you could at this point deduce which point you are on, but work with us here people.
Instead of making such an assumption, you decide your senses are never to be trusted and, after all, Jesus stood on water, so why not you? Thus, you ask a third person — they say, “You are 500 miles from Boise, Idaho.” That circle drawn, you now know exactly where you are in two dimensional space. Near Kamloops, Canada, as it turns out.
This is more or less what’s happening with GPS, except in the case of GPS you need to think in terms of 3D spheres instead of 2D circles. Further, how the system tells you your exact distance from a reference point, in this case each of the satellites, is via transmitting the satellites’ exact locations in orbit and a timestamp of the exact time when said transmission was sent. This time is synchronized across the various satellites in the GPS constellation.
The receiver then subtracts the current known time upon receiving the data from that transmission time to determine the time it took for that signal to be transmitted from the satellites to its location.
Combining that with the known satellite locations and the known speed of light with which the radio signal was propagated, it can then crunch the numbers to determine with remarkable accuracy its location, with margins of error owing to things like the ionosphere interfering with the propagation of the signal, and various other real world factors such as this potentially throwing things off a little.
Even with these potential issues, however, the latest generation of the GPS system can, in theory, pinpoint your location within about a foot or about 30 centimeters.
You may have spotted a problem here, however. While the GPS satellites are using extremely precise and synchronized atomic clocks, the GPS system in your car, for example, has no such synchronized atomic clock. So how does it accurately determine how long it took for the signal to get from the satellite to itself?
It simply uses at least four, instead of three, satellites, giving it the extra data point it needs to solve the necessary equations to get the appropriate missing time variable. In a nutshell, there is only one point in time that will match the edge of all four spheres intersecting in one point in space on Earth. Thus, once the variables are solved for, the receiver can adjust its own time keeping appropriately to be almost perfectly synchronized, at least momentarily, with the much more precise GPS atomic clocks. In some sense, this makes GPS something of a 4D system, in that, with it, you can know your precise point in not only space, but time.
By continually updating its own internal clock in this way, the receiver on the ground ends up being nearly as accurate as an atomic clock and is a time keeping device that is then almost perfectly synchronized with other such receivers across the globe, all for almost no cost at all to the end users because the U.S. government is footing the bill for all the expensive bits of the system and maintaining it.
Speaking of that maintanence, another problem you may have spotted is that various factors can, and do, continually move the GPS satellites off their original orbits. So how is this accounted for?
Tracking stations on Earth continually monitor the exact orbits of the various GPS satellites, with this information, along with any needed time corrections to account for things like Relatively, frequently updated in the GPS almanac and ephemeris. These two data sets are used for holding satellite status and positional information and are regularly broadcast to receivers, which is how said receivers know exact positions of the satellites in the first place.
The satellites themselves can also have their orbits adjusted if necessary, with this process simply being to mark the satellite as “unhealthy” so receivers will ignore it, then move it to its new position, track that orbit, and once that is accurately known, update the almanac and ephemeris and mark the satellite as “healthy” again.
So that’s more or less how GPS came to be and how it works at a high level. What about the part where we said many GPS devices may potentially stop working very soon if not updated?
Near the turn of the century something happened that had never happened before in the GPS world — dubbed a “dress rehearsal for the Y2K bug”. You see, as a part of the time stamp sent by the GPS satellites, there is something known as the Week Number — literally just the number of weeks that have passed since an epoch, originally set to Jan. 6, 1980. Along with this Week Number the number of seconds since midnight on the previous Saturday evening is sent, thus allowing the GPS receiver to calculate the exact date.
Artist’s conception of GPS Block II-F satellite in Earth orbit.
So what’s the problem with this? It turns out every 1024 weeks (about every 19 years and 8 months) from the epoch, the number rolls back to 0 owing to this integer information being in 10 bit format.
Thus, when this happens, any GPS receiver that doesn’t account for the Week Number Rollover, will likely stop functioning correctly, though the nature of the malfunction varies from vendor to vendor and device, depending on how said vendor implemented their system.
For some, the bug might manifest as a simple benign date reporting error. For others, such a date reporting error might mean everything from incorrect positioning to even a full system crash.
If you’ve done the math, you’ve probably deduced that this issue first popped up in August of 1999, only about four years after the GPS system itself was fully operational.
At this point, of course, GPS wasn’t something that was so ubiquitously depended on as it is today, with only 10-15 million GPS receivers in use worldwide in 1999 according to a 1999 report by the the United States Department of Commerce’s Office of Telecommunications. Today, of course, that number is in the billions of devices.
Thankfully, when the next Week Number Rollover event happens on April 6, 2019, it would seem most companies that rely on GPS for critical systems, like airlines, banking institutions, cell networks, power grids, etc., have already taken the necessary steps to account for the problem.
The more realistic problems with this second Week Number Rollover event will probably mostly occur at the consumer level, as most people simply are not aware of the issue at all.
Thankfully, if you’ve updated your firmware on your GPS device recently or simply own a GPS device purchased in the last few years, you’re probably going to be fine here.
However, should you own a GPS device that is several years old, that may not be the case and you’ll most definitely want to go to the manufacturer’s website and download any relevant updates before the second GPS epoch.
That public service announcement out of the way, if you’re now wondering why somebody doesn’t just change the specification altogether to stop using a 10 bit Week Number, well, you’re not the first to think of this. Under the latest GPS interface specifications, a 13 bit Week Number is now used, meaning in newer devices that support this, the issue won’t come up again for about a century and a half. As the machines are bound to rise up and enslave humanity long before that occurs, that’s really their issue to solve at that point.
Ever notice that your cell phone tends to lock on to your GPS position extremely quickly, even after having been powered off for a long time? How does it do this when other GPS devices must wait to potentially receive a fresh copy of the almanac and ephemeris? It turns out cell phones tend to use something called Assisted GPS, where rather than wait to receive that data from the currently orbiting GPS satellites, they will instead get it from a central server somewhere. The phone may also simply use its position in the cell phone network (using signals from towers around) to get an approximate location to start while it waits to acquire the signal from the GPS satellites, partially masking further delay there. Of course, assisted GPS doesn’t work if you don’t have a cell signal, and if you try to use your GPS on your phone in such a scenario you’ll find that if you turn off the GPS for a while and then later turn it back on, it will take a while to acquire a signal like any other GPS device.
Starting just before the first Gulf War, the military degraded the GPS signal for civilian use in order to keep the full accuracy of the system as a U.S. military advantage. However, in May of 2000, this policy was reversed by President Bill Clinton and civilian GPS got approximately ten times more accurate basically overnight.
The military also created the ability to selectively stop others from using GPS at all, as India discovered thanks to the Kargil conflict with Pakistan in 1999. During the conflict, the U.S. blocked access to the GPS system from India owing to, at the time, better longstanding relations between the U.S. and Pakistan than the U.S. had with India. Thus, the U.S. didn’t want to seem like it was helping India in the war.
This article originally appeared on Today I Found Out. Follow @TodayIFoundOut on Twitter.
US Air Force F-35s accidentally left behind phallic contrails in the sky after air-to-air combat training this week.
Two of the fifth-generation stealth fighters went head-to-head with four additional F-35s during a simulated dogfight, Luke Air Force Base told Business Insider.
In the wake of the mock air battle, the contrails looked decidedly like a penis. Media observers out in Arizona said it “vaguely resembles the male anatomy.”
But unlike a rash of prior sky penis sightings, the base has concluded that this was not an intentional act. “We’ve seen the photos that have been circulating online from Tuesday afternoon,” Maj. Rebecca Heyse, chief of public affairs for the 56th Fighter Wing at Luke, told Air Force Times in an emailed statement.
“56th Fighter Wing senior leadership reviewed the training tapes from the flight and confirmed that F-35s conducting standard fighter training maneuvers Tuesday afternoon in the Gladden and Bagdad military operating airspace resulted in the creation of the contrails.”
“There was no nefarious or inappropriate behavior during the training flight,” the base explained.
There have been numerous sky penis incidents in recent years, with the most famous involving a pair of Navy pilots created a phallic drawing in the air with an EA-18G Growler. The 2017 display was the work of two junior officers with Electronic Attack Squadron 130, according to Navy Times’ moment-by-moment account of the sky drawing.
Last year, an Air Force pilot with the 52nd Fighter Wing was suspected of getting creative with his aircraft, as some observers believed the contrails left behind were intentionally phallic. The flight patterns, according to Air Force Times, were standard though.
The latest incident is the first time a fighter as advanced as the F-35 has left behind this type of sky art.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
Imagine the tension of being a British soldier waiting to be evacuated from the beaches of Dunkirk as the Nazi Wehrmacht closed in around you and your mates. Now imagine somehow being left behind after all 340,000 of your fellow troops were led back to Britain.
May joined the service in 1940, after World War II broke out. He enlisted to become a driver with the 13-division strong British Expeditionary Force in France. The British mission on continental Europe in the early days of the war did not go well. After Nazi Germany invaded Poland in September, 1939, the French and British declared war almost immediately. Just as fast, the British Expeditionary Force began arriving in France.
By June, 1940, they were all being evacuated by any British subject who had a boat that could float. Most of them, anyway.
The effort to rescue the trapped Allied troops was dubbed “Operation Dynamo” and was a mission to pick up distressed British, French, and Belgian troops waiting on the beaches at Dunkirk. By May 10, 1940, Nazi Germany had captured all of Belgium, Luxembourg, and the Netherlands. They were already in control of much of Northern France and had the Allied forces on the ropes.
As the Nazis moved to push the Allies into the sea, British citizens and Royal Navy ships mounted the massive impromptu rescue effort, pulling any troops they could fit in their craft, and ferrying them back across the channel. Not everyone survived the wait on the beaches, as they were constantly harassed by the Nazi luftwaffe and threatened by German ground forces.
British troops waiting for evacuation on the beaches of Dunkirk.
In Dynamo, the British expected to be able to save some 30,000 to 45,000 troops who would then defend the British home islands. Using a still-unknown number of “little ships” piloted by civilians, they managed to save ten times that number. It truly was a miracle.
But James May and six of his fellow soldiers were somehow left behind. They did what any quick-thinking, resourceful bunch of soldiers would do in a lawless area with an determined enemy bearing down on them: They stole a car and beat it.
In their own, smaller version of the Miracle at Dunkirk, the group managed to drive out of the war zone in their stolen vehicle, evading the Wehrmacht for a full six days before finding a boat and captain that would ferry them home to England.
He was stationed in Northern Ireland for much of the war but he had his chance to hit the beach of France once more, and again as a driver. This time, however, he was driving a British DUKW amphibious vehicle, landing British troops in the battle to crack the walls of Hitler’s Fortress Europe.
Hindsight is a cruel mistress. After Archduke Franz Ferdinand was assassinated, nearly every corner of the globe was drawn into a conflict — and the enormous loss of life that ensued was tragic. There were so many participants in the brawl that you couldn’t just name the war after its location or its combatants — after all, the “French-British-German-Austrian-Hungarian-Russian-American-Ottoman-Bulgarian-Serbian War” doesn’t really roll off the tongue (nor is it a complete list). So, the people of the time called it, simply, “The Great War.”
In some rare instances, the war was referred to as the “First World War,” even before the advent of the second. Ernst Haeckel, a columnist for the Indianapolis Star, called it that because it escalated beyond the scope of a “European War” — it was truly international.
Others, however, took a more optimistic approach by calling it, “The War to End All Wars.” As history has shown, this was certainly not the case — but some plucky, upbeat civilians genuinely believed it would be rainbows and sunshine after the dust from the global conflict settled.
You wouldn’t think the guy that wrote about aliens destroying humanity would be such an optimist…
(Illustration by Alvim Corréa, from the 1906 French edition of H.G. Wells’ ‘War of the Worlds.’)
English author H.G. Wells — the genius behind The Time Machine, The Invisible Man, and The War of the Worlds — wrote in an articles to local newspapers that this global struggle, this Great War, would be “The War That Will End Wars” as we know them (full versions of his articles were later transcribed into a book entitled The War That Will End War).
In his articles, Wells argued that the Central Powers were entirely to blame for the war and that it was German militarism that sparked everything. He believed that once the Germans were defeated, the world would have no reason to fight ever again.
We know today that these statements were far from true, but for the people who were living in constant fear mere miles away from the front line, it was the optimism that they needed to keep going. By 1918, the term “The War to End All Wars” had spread all across Europe like a catchphrase and was synonymous with hope for a better future.
He was a eloquent speech writer, but he was a few years too late to come up with the phrase.
Despite the fact that the phrase had been used in Europe for years, it’s most often attributed to President Woodrow Wilson. This is particularly strange because the President only once used the term — and never did so in any congressional address. Wilson did once refer to the end of the war as the “final triumph of justice,” but he seldom used the phrase for which he later became known.
If there was a single human being who knew war best, it was, without a shadow of a doubt, General of the Armies Eisenhower.
David Lloyd George, 1st Earl Lloyd-George of Dwyfor and British statesman, was a loud opponent to the phrase. Mockingly, he said that The Great “War, like the next war, is a war to end war” — and, of course, he was right. To the shock of absolutely nobody, conflicts persisted around the world after the armistice was signed on November 11, 1918.
Wells, who originally coined the phrase, later backtracked on his statements, insisting that he, too, was being ironic. He joined in with everyone else in making fun of his statements — and later claimed it was the “war that could end war.”
In 1950, General Dwight D. Eisenhower put it plainly and finally.
“No one has yet explained how war prevents war. Nor has anyone been able to explain away the fact that war begets conditions that beget further war.”
Pearl Harbor survivor Lauren Bruner was laid to rest aboard the sunken remains of the USS Arizona with the help of two Army divers in diving gear from the period.
Army 7th Dive Detachment Divers SSG Fred Bible and SPC Julio Melendez wore lead boots and a drysuit — weighing a total of 220 pounds — and the last two Mark 5 vintage hard hats certified for operational use on the dive.
Bruner, who died on Sept. 10, 2019, at 98 years old, was interred on the wreck of the Arizona on December 7, the 78th anniversary of the Japanese attack on Pearl Harbor.
(Library of Congress)
After Bruner’s death, only three Arizona crew members are still alive today.
According to the Honolulu Star-Advertiser, Bruner survived the attack on the Arizona by going hand over hand across a rope stretched 70 feet above the harbor. Forty-four other survivors have had their remains interred on the ship, alongside their more than 900 shipmates who went down with the ship during the attack.
Bruner will be the last survivor to be interred on the wreckage, the Star-Advertiser reports; he was the second-to-last man to escape the flaming ship, according to CNN.
Attendees salute Bruner’s ashes.
(Mass Communication Specialist 1st Class Holly L. Herline/US Navy)
SSG Fred Bible and SPC Julio Melendez wore vintage diving suits to place Bruner’s ashes in the well of barbette number four.
Bruner suffered burns on 80% of his body, but went back into service after he healed. He served aboard the USS Coghlan in eight other battles against Japan’s forces, CNN reports.
US Army 7th Dive Detachment Divers SSG Fred Bible and SPC Julio Melendez interred the remains of Pearl Harbor Survivor Lauren Bruner amongst the remains of his fellow crewman on board the sunken USS Arizona.
(Screengrab/Sgt. Laura Martin/US Army/DVIDS)
The diving suits are similar to what salvage divers would have worn on salvage missions into Pearl Harbor.
The Mark 5 helmet and dive suit was used from 1916 until the 1980s, according to the US Naval Undersea Museum.
“In retrospect, it’s very historical and super-cool, but it’s kind of uncomfortable,” Melendez told the Star-Advertiser. “It’s super heavy and it’s kind of amazing to think that it took so long to kind of upgrade it.”
US Army 7th Dive Detachment Divers SSG Fred Bible and SPC Julio Melendez interred the remains of Pearl Harbor Survivor Lauren Bruner aboard the USS Arizona.
(Screengrab/Sgt. Laura Martin/US Army/DVIDS)
Underwater, Melendez and Bible walked about 200 feet along the wreckage of the Arizona before they brought Bruner’s remains to their final resting place.
While the Navy has performed this kind of ceremony before for other Pearl Harbor survivors, the divers have always worn modern diving kits.
“I think it was a really fitting tribute and I think it’s an interesting way to kind of close out the last of the interments — to have it done not only with the ceremony that we normally do, but to have historic hardhats like it would have been during the salvage in World War II,” Brett Seymour, the deputy chief of the National Park Service’s Submerged Resources Center, told the Star-Advertiser.
(Screengrab/Sgt. Laura Martin/US Army/ DVIDS)
“We’ve never done an interment with hardhats for sure,” Seymour told the Star-Advertiser.
“It was historical. I was left speechless, honestly,” Melendez told the Star-Advertiser. “It was a very in-the-moment experience. Just kind of taking it all in and realizing what we were doing and the history that’s being made and remembering Lauren Bruner and everything that he had done.”
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
Before 9/11, the last time American forces fought on horseback was on January 16, 1942 when the U.S. Army’s 26th Cavalry Regiment charged an advanced guard of the 14th Japanese Army as it advanced from Manila.
After the terror attacks of Sep. 11, 2001, the United States demanded the extradition of Osama bin Laden from the Taliban, then the recognized government of Afghanistan. When the Taliban didn’t cough him up, the U.S. military went to work.
Official combat operations started on Oct. 7, 2001 in the form of airstrikes and Tomahawk missile strikes against suspected al-Qaeda training sites near Kandahar, Kabul, and Herat. On Nov. 16, Defense Secretary Donald Rumsfeld announced “we have had limited number of American forces on the ground for weeks.”
He was talking about the Horse Soldiers, U.S. Special Forces attempting to secure Northern Afghanistan with the Afghan Northern Alliance.
The elite troops were there to connect with and advise the Northern Alliance fighters who had been fighting the Taliban government since 1996. They were just in time. On Sep. 9, 2001, al-Qaeda operatives assassinated Ahmad Shah Massoud, the longtime resistance fighter who led wars against the Soviet Union and later, the Taliban (Massoud even tried to warn Western leaders about the 9/11 attacks). He rejected the Taliban’s strict interpretation of Islam and was the able political and military leader of the Northern Alliance. When the Americans arrived the Alliance fighters were ready to avenge Massoud. The only way to get around the country was on horseback.
For some of the American commandos, it was their first time on a horse. “It was like riding a bobcat,” Lt. Col. Max Bowers (Ret.) told CNN.
Sergeant 1st Class Joe Jung, the team’s medic and sniper, was thrown from his horse, broke his back, and continued with the mission. “I would not allow myself to be the weak link,” Jung said. “It’s not in my nature, and it’s not in any Green Beret’s nature.”
Bowers carried a piece of the World Trade Center during the entire mission and months later, buried it with full military honors at Mazar-e-Sharif.
The commandos’ horses were trained by the Northern Alliance warriors to run toward gunfire. Charges pitting Alliance forces against the Taliban were much like those centuries ago, but the fighters used AK-47s instead of sabers.
Air Force Combat Controller Master Sgt. Bart Decker used laser-guided airstrikes to support Alliance forces. Abdul Rashid Dostum, leader of Alliance forces, referred to one of the female navigators on an AC-130 gunship providing close air support as the “Angel of Death.”
During the Battle of Mazar-e-Sharif, Jung treated Taliban fighters. The special forces let one go, allowing him to tell other Taliban fighters he was treated humanely and they would be too. This led to mass surrender after the battle. After Mazar-e Sharif, Jung heard an odd accent among the wounded at a prison camp.
That voice came from John Walker Lindh, the infamous “American Taliban.” The Taliban POWs would later rise up against their captors, capturing the arsenal at Mazar-e Sharif, killing CIA operator Mike Spann, the first casualty of American operations in Afghanistan.
It took two months for the Allied forces to defeat the Taliban government.
Kentucky sculptor Douwe Blumberg created a monument of the horse soldiers in his studio in 2011, in honor of the entire military special operations community. That statue, the American Response Monument, is now at the World Trade Center site in New York.