Today’s military has many antiquated training plans still written into the calendar. Troops will still practice drill and ceremony despite the fact that the need for marching into combat died out more than a hundred years ago. We still sharpen our land navigation skills despite the fact that we have overwhelming technological advantages that make the use of more primitive tools highly improbable.
However, the one training that always draws the loudest “but why?” from the back of the formation is bayonet warfare. And you know what? That loud, obnoxious dude isn’t entirely wrong — the last time “fix bayonets!” was officially ordered to a company-sized element in combat was by Col. Lewis Millet during the Korean War.
But bayonet training isn’t about just learning to attach a “pointy thing to your boomstick and poking the blood out of people,” as an old infantry sergeant once told me. It’s about laying the fundamentals of everything else.
It’s only silly if you make it silly. If you do, the other guy will knock the silliness out of you.
(U.S. Marine Corps photo by Staff Sgt. Melissa Marnell)
Bayonet training was officially taken off the Army’s basic training schedule back in 2010 because it created scheduling conflicts with other needed skills. Still, some drill sergeants find a way to work it in on their own time. The Marine Corps still learns the skill, but it’s a part of the greater Marine Corps Martial Arts Program.
The training is always conducted in stages. The first stage is to have the recruits train on pugil sticks — giant, cotton-swab-looking sticks. This teaches a warfighter the importance of maintaining a positive footing while trying to overpower an opponent. Literally anyone can take on anyone in a pugil stick match because it’s not about size or strength — it’s about control.
Learning to control your body while asserting dominance on your enemy is crucial in close-quarters combat. Once you’ve mastered the pugil stick, you can move on to bayonets.
“Yeah! Take that, tire! F*ck you!”
(U.S. Marine Corps photo by Cpl. Walter D. Marino II)
Fighting with a bayonet is less like fighting with a rifle that happens to have a knife attached and more like using a spear that has a rifle on it. Much of the same footwork learned while training with pugil sticks plays a role here. Maintain good footing, thrust your bayonet into the enemy, and send them to their maker.
Maintaining good footing is a fundamental of nearly every single martial arts form known to man. Instead of having troops learn a martial art (which would take years to yield workable results), troops can come to understand the importance of footwork by just stabbing a worn-out tire — much more efficient.
(U.S. Marine Corps photo by Lance Cpl. Maximiliano Bavastro)
The third and most vital lesson that’s secretly taught behind the guise of bayonet training is when the troops line up to conduct a full charge toward targets.
Sure, without the real threat of danger, the point may be missed by some, but it’s important nonetheless. If you and your unit are tasked with making a last-ditch effort to stop the enemy and all you have is your bayonet, many of you may die. But when you know for certain that you and your brothers will charge into death head-on with the hopes of gutting at least that one, last son of a b*tch… you’ve embraced the warrior lifestyle.
Sure, missing out on that life lesson doesn’t hurt the “combat effectiveness” that training room officers love to care about, but there’s little else that compares to the ferocity of a bayonet charge.
U.S. involvement in Iraq has gone on for far longer than you might have thought. In the heat of World War II, Hitler had his eyes on the Middle East for resources. However, the British had laid claim to the area with the Sykes-Picot Agreement, and America was doing whatever they could to help their allies.
Although the circumstances for landing troops in the country were far different back then than they were in 1990 and 2003, elements of the local culture have remained the same. Surprisingly, the troops’ 1942 guide to Afghanistan still holds up fairly well today.
To prepare any American soldiers for their time in region, the U.S. Army printed several pamphlets, like the Short Guide to Iraq. The guide covered many things you’d expect to find in a pocket guide: general do’s and don’ts, translations and a pronunciation guide, and little snippets about daily life in Iraq.
Despite being more than a half-century old, the guide holds up surprisingly well. If you were to take the WWII-era pamphlet and swap out any use of “Nazism” with “Extremism,” you’d have a pretty useful modern tutorial. The goal back in the 40s was cull the spread of Nazi influence, just as today’s goal is to cull the spread of terrorism. The way to do this was, as always, by winning the hearts and minds of locals while keeping a military option on the table.
(Photo by Petty Officer 2nd Class Todd Frantom)
Societies change over the years, but many of the “do’s and dont’s” in Iraq have a lot to do with religion and culturally appropriate reactions to hospitality. Certain things have proven timeless: It’s rude to refuse food, so, if you don’t want it, just take a small amount. Don’t gawk at two men holding hands while they walk. Don’t stare at people and accidentally give them the “Evil Eye.”
Even the little things about Iraq, like the fact that every price can be bargained and cigarettes make the best bribes, were known back then. Of course, like any good Army guide, it ends by reminding us that “every American soldier is an unofficial ambassador of good will.”
Live-action roleplaying is popular among nerds the world over. But what they don’t realize is that the military hosts their own LARPing events to prepare for war.
While training for real-life combat, it’s important that the military runs simulations that get as close to the real thing as possible. But, when you start to really break it down, it becomes clear that the government is spending tons of money on opportunities for advanced LARPing — as they should be.
Here, we have a group of infantry LARPers attacking an enemy town.
(U.S. Marine Corps photo by Pfc. Rachel K. Porter)
You’re just pretending you’re at war
Make no mistake, there’s plenty of purpose behind it but, at the end of the day, your life is in very little real danger. A lot of times, you’re shooting pretend bullets at pretend targets in a pretend country.
Even when you get real bullets, you’re still fighting a made-up military in a made-up country.
Here, we have a berserker class clearing the way for the warriors.
(U.S. Marine Corps photo by Pfc. Rachel K. Porter)
You dress up as your selected class
Whether you chose to be a berserker (machine gunner), a warrior (rifleman), or a mage (mortarman), you get to dress up as your character and carry real equipment.
The bonus here is that the government spends tons of money training you in your selected class.
You get to fire real rockets!
(U.S. Marine Corps photo by Cpl. Aaron Henson)
You use real weapons
This is actually pretty cool considering that most LARPers don’t get to use real weapons. The government will spend lots of money for you to get a real weapon to use in your roleplay events, like Integrated Training Exercise (ITX). Meanwhile, not every LARPer is into live steel.
They’re there to create the most authentic of experiences.
(U.S. Army photo by Spc. Hubert D. Delany III)
You get to ride in helicopters to make the scenarios even more realistic. Sometimes, you’ll even get support from jets and tanks to truly sell an authentic experience.
Okay, so these props might be a tad cooler than getting to drink your own, real-life “health potion” that is probably just Sprite and grenadine…
They’re out there to help you… or hurt you.
(U.S Marine Corps photo by Lance Cpl. Juan A. Soto-Delgado)
Other roleplayers are involved
When you go to ITX, they’ll bring in a bunch of people to act as townspeople and enemies. This makes the experience a lot more authentic, which makes it a lot more interesting and fun.
You can talk with these NPCs for extra experience.
(U.S. Marine Corps photo by Lance Cpl. Alexis C. Schneider, 2d MARDIV Combat Camera)
There are non-player characters
The roleplayers that get brought in for the purpose of acting as the townspeople are very interactive NPCs. You’ll go on a patrol through the town and they’ll offer information or things to buy. Be careful, though, some might be working with the enemy!
The Coyotes even wear special items to specify they’re game masters.
(Marine Corps photo by Lance Cpl. Levi Schultz)
There’s usually a game master
In a lot of cases, there will be someone acting as the GM, there to make sure people aren’t cheating and everyone dies when they’re supposed to. They might come in the form of your company Gunny (or a Coyote in the case of ITX). They keep things fair and they’ll evaluate your performance after the event is over.
Here, we have two LARPers from different countries interacting in a dialogue.
(U.S. Marine Corps photo by Sgt. Tiffany Edwards)
You get to roleplay with other countries
On a peacetime deployment, you basically go to other countries to train with their military if your unit is trustworthy enough for that responsibility. This means that you travel and meet with other LARPers as you share an event together.
If you’ve never heard of Max Uriarte, you’re in for a treat. He’s the Marine, writer, and artist best known for his comic Terminal Lance, which pokes fun at the Marine Corps from a grunt’s point of view. Now he’s teamed up with The Call of Duty Endowment to create the Call of Duty: “Night Raid” PlayStation 4 Dynamic Theme.
The Call of Duty Endowment “helps veterans find high quality careers by supporting groups that prepare them for the job market and by raising awareness of the value vets bring to the workplace.”
All proceeds from the sale of the Night Raid theme ($2.99) go directly to the endowment to help vets get jobs after service. The Call of Duty Endowment has placed over 57,000 veterans thus far. Their new goal is placing 100,000 veterans into high quality jobs by 2024.
Check out some of the awesome artwork below:
Call of duty Endowment night raid dynamic theme tier 3
Uriarte deployed to Iraq twice with 3rd Battalion, 3rd Marines. In 2007 he operated as a turret gunner out of Fallujah and in 2009 he was a combat photographer out of al Asad. His second deployment left a lasting impact on his civilian career as an artist — or, to be more specific, a Combat Artist.
“Combat Art is the act of capturing beauty in places you wouldn’t normally find it. It…exists solely for the purpose of creating art on the battlefield. When events are filtered through an artist’s eye, they capture things that maybe a camera does not, such as the feelings and emotion of the place or subjects. A photograph is objective — it shows reality. A sketch or a painting is subjective, it shows what the artist interpreted and what the artist saw that maybe no one else did (or could),” Uriarte told Fletcher Black of Activision.
U.S. Marine Max Uriarte (left); ‘Terminal Lance’ Marines Abe Garcia (right)
‘Terminal Lance’ strikes true with Marines — and vets from all branches — who’ve dealt with some of the…color…military service has to offer. The comic makes light of the tedium and nonsense that come with the job.
But Uriarte also has a serious side. His graphic novel, The White Donkey, was based on his combat deployment in Fallujah. His upcoming graphic novel, Battle Born: Lapis Lazuli, promises to be a visceral examination of the effects of war on an Afghanistan province.
Who better to design art for the Call of Duty Endowment than a combat-experienced Marine with an artist’s eye and a creator’s hand?
Call of Duty®: Black Ops 4: C.O.D.E. Jump Pack
You can also support veterans by grabbing the new Call of Duty®: Black Ops 4 – C.O.D.E. Jump Pack, which includes a special wingsuit, parachute, and trail. 100% of the proceeds will go directly toward helping veterans get jobs after their military service.
Check out both the Jump Pack and the “Night Raid” Dynamic Theme on your PlayStation!
Stasia Foley lived a beautiful life. She was born on May 22, 1916, in Connecticut, right before World War I began. She vividly remembered being a teenager during the Great Depression and the hardship that came with it. She left school at just 13 years old to support her family. With five brothers and sisters, everyone had to pitch in. Stasia spent her days on a farm planting and harvesting crops to help feed her family.
Family was everything to her.
Stasia was highly athletic and was a part of the Hazardville R.C.A. Girls Baseball team, a team that would go on to win numerous championships. This eventually led her to being inducted into the Enfield Sports Hall of Fame. Throughout her life, she watched some of the sport’s giants play, including Babe Ruth and Lou Gherig in Yankee Stadium. Stasia received signed baseballs and loved to tell stories both about her time in the dugout and in the stands.
Stasia met the love of her life, Edward Foley, and married him on Oct. 8, 1938. Life was good, for awhile. World War II would soon come calling.
Edward was drafted into the Army as a medic on Feb. 7, 1942, and was quickly sent to Europe – right in the middle of combat. She missed him desperately and relied on infrequent postcards and letters from his stops throughout the war.
Edward assisted in the liberation of Auschwitz and Dachau Nazi concentration camps.
While Edward was gone, Stasia went to work for Colt Firearms in Hartford. The company’s workforce grew by 15,000 in three separate factories to keep with the demand for the war effort.
Eventually, the war ended and Edward came home safely toward the end of 1945. The couple had two children, Gail and Daniel. Stasia worked for aerospace companies and spent 25 years working for Travelers Insurance Companies until her retirement. Stasia and Edward were married 51 years before her soulmate died in 1989.
Stasia loved her family, especially her three grandchildren. One of her grandsons would go on to serve in the United States Coast Guard. Sunday dinners in her home, surrounded by all, were the highlight of the week. In 2001, Stasia’s son Daniel and his family moved to Texas. Eventually, Stasia moved in with her daughter, Gail and her husband, William.
When Stasia turned 100, she was still highly independent, active and as sharp as ever. She had just started using a cane at her family’s insistence. At 102, things started to slow down. Her granddaughter, Tara Bars, decided to make a legacy video.
“She had always been such an important woman in my life,” Bars explained. “I feel like the time in her life that she lived, she saw so much. Living through the wars, the Great Depression – it has always fascinated me but the fact that my Nana lived that, saw that, witnessed it and was part of it… Once that line is gone, it’s very difficult to ever figure out or hear those family stories,” she said.
Following the completion of that video, Bars saw how frail her grandmother was becoming. In December of 2018, congestive heart failure made its presence known, causing her once-independent grandmother to become weak and easily winded. Stasia was with her daughter and her husband in their Florida winter home when she was eventually put on hospice care. When the nurses met with her in the home, they asked her what her goals were.
She told them her dream was to go to Tara’s wedding.
“When I heard that, it just broke my heart to pieces because I just knew she wouldn’t make it,” Bars said in between tears. Bars’ wedding was set for June 1, 2019, and Stasia was medically unable to fly, with her health rapidly deteriorating. Bars said she turned to her fiancé one day in January and told him she was going to Florida.
She would make her part of her grandmother’s wish come true.
“I looked up photographers and the first one I talked to on the phone was Red Door Photography and they just made me feel like it was going to be perfect,” she shared. Bars then went on to book hair and makeup, keeping everything a secret from her family. She made up a story about needing one last interview with Nana for the legacy video so her aunt and uncle wouldn’t suspect anything. They got Stasia ready and downstairs – telling her there was a surprise. When the doors opened, her beloved granddaughter was waiting for her.
In the car as they were driving to the surprise, she told her grandmother that she knew how much she wanted to be at her wedding and so she decided to bring the moment to her.
The memory of Stasia’s face lighting up with joy is one Bars will carry with her forever.
They arrived at the location and Bars went to change into her wedding dress. She said as she came around the corner, she could see her grandmother sitting in the chair, her arms opening as soon as she saw her. “She held her arms out to me so I just plopped down right there. She kept hugging me and kissing me and telling me how beautiful I looked. It absolutely meant everything to me that it meant everything to her,” Bars shared through tears.
Bars said that as soon as the photography session started, something changed. It was like her grandmother became a young woman again, said Bars, “She was no longer the fragile and frail Nana I saw a moment before. Something inside of her just lit up, it was incredible.” She continued, “I couldn’t have asked for a better way to spend my last day with her. Our hearts spoke together that day.”
Stasia passed away at 102; only 27 days after that beautiful photoshoot with her granddaughter in her wedding gown.
On her wedding day, Bars finally revealed the photoshoot surprise to her family. The tears and joy were overflowing. Her wedding photographer was there to capture the moment and shared it on social media. It went viral.
“Don’t be scared to show your love and express it. We’re losing this generation. Once they are gone you can’t go back,” said Bars.
In a world where everything moves so fast; take a moment to pause. Savor the special moments and people in your life. You never know how much time you’ll have left.
China is touting its improved aircraft carrier capabilities, but one of the biggest obstacles to having the world’s second-most powerful carrier fleet remains its troubled carrier-based fighter — the J-15 Flying Shark.
Striving to build a blue-water navy suitable for global operations, China expects to have four operational carrier battle groups within the next decade. China already has one active carrier, another undergoing sea trials, and another one in development. Experts speculate that while the first two appear to be limited in their combat capabilities, the third carrier could be a “huge step forward.”
In several state media publications, China cheered its carrier-based fighter jet force for achieving “breakthroughs” since its establishment a little over five years ago. Chinese media said Navy pilots have qualified to take off and land the J-15 fighter on the Liaoning, China’s first and only active aircraft carrier. “An elite team among the pilots also has carried out night landings, widely considered the riskiest carrier-based action, and have become capable of performing round-the-clock, all-weather operations,” the China Daily reported Wednesday.
The Global Times ran a video Thursday of Chinese J-15s conducting night operations from the deck of the Liaoning carrier.
The J-15 is far from the most suitable aircraft for carrier operations though. Not only is the plane considered too big and too heavy, with an unarmed take-off weight of 17.5 tonnes as compared to the US F/A-18 Super Hornet’s 14.6 tonnes, but it can be rather unreliable. Problems with the aircraft, especially the flight control systems, are believed to be behind several fatal training accidents, the Asia Times reported.
The weight issues really come into play on a ship like the Liaoning, which uses a ski jump-assisted short take-off but arrested recovery (STOBAR) launch system. This system — as opposed to steam or electromagnetic catapult-assisted take-off but arrested recovery (CATOBAR) launch systems used on US carriers — strains the aircraft and tends to force reductions in operational range, payload size, and sortie frequency.
The J-15, a reverse engineered version of a Soviet-era prototype, is rumored to be getting a new engine, which could boost its capabilities, but a new carrier-based fighter will eventually be necessary. China is reportedly considering replacing the fourth-generation fighter jets with a lighter and more capable aircraft. Nonetheless, Chinese military experts expect the J-15 to “remain the backbone of China’s carrier battle groups in the future,” according to the South China Morning Post.
The J-15 Flying Shark.
Perhaps the biggest problem with the J-15 is the lack of them. As production and deployment rates are low, the Chinese People’s Liberation Army reportedly has only 30-40 of these fighters. The Liaoning needs 24 to form a full combat-ready fighter squadron, and the soon-to-be-commissioned second carrier will need roughly the same amount to stand up a fighter wing.
“As a big power, China needs more carrier-based warplanes to support its naval ambitions, especially with its first home-grown aircraft carrier entering the final phase of sea trials and likely to go into service next year,” Li Jie, a Beijing-based naval expert, told SCMP.
As China works to build up its naval fleet and expand its capabilities, especially those of its carriers, China will need to overcome challenges, such as number of trained pilots, power and propulsion issues, launch system problems, and limited experience with carrier operations.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
Mindy N. asks: After a long run my leg muscles are tired, but my heart is not. Why doesn’t the heart need any rest?
An average of around 60 to 100 times every minute of every day of every year of your ultimately meaningless life, your heart beats… until it doesn’t. Not long after it stops, all knowledge of your having existed is rapidly forgotten. Unlike the other muscles in your body, however, your heart steadfastly rages against the dying of the light, refusing to ever get tired. But how does it manage this and why are your other muscles such slackers in comparison?
To begin with, the human body is broadly composed of three types of muscles: skeletal, smooth and cardiac. Skeletal muscles are striated (banded), and are what most of us think of when we envision a muscle — controlling pretty much all voluntary, and some involuntary, body movement.
Like cardiac muscle, skeletal muscle derives energy from ATP (Adenosine triphoweknowyoudontcare), with this being made in a few different ways. To avoid going full textbook, we’ll just briefly give the high level over simplified view here. In a nutshell, the slowest, but most efficient, method of ATP production is via aerobic respiration where mitochondria in your muscle cells draw energy from the Dark Dimension, producing ATP, a small amount of which is stored in your muscles at any given time. This stored amount is a sufficient supply to last for about 3 seconds of vigorous activity, not unlike your high school boyfriend.
Diagram of the human heart.
After this supply is taxed, with the ATP converted to ADP (adenosine diphosophate) in the process, creatine phosphate in the muscles is used to convert it back to ATP. This supply will last about 8-15 seconds.
Next up, it turns out we were totally wrong about that whole Dark Dimension thing as, in fact, your muscles continue to get ATP beyond this via a series of chemical reactions resulting in glucose being used to make the needed ATP to keep going. This glucose comes from a variety of sources, such as glycogen in your muscles, or via blood via fats, protein, stores in the liver, and from your food churning away in your intestines.
There are two high level ways this production of ATP ends up being accomplished. In the first, using large supplies of oxygen. In this case, as much as 38 ATP molecules can be produced for every glucose molecule. In the second case, via anaerobic glycolysis — not requiring oxygen — only 2 molecules of ATP are produced for each molecule of glucose. While an extremely inefficient use of the available supply of glucose, this method at least produces the ATP over two times faster than aerobic respiration and continues working for a time while you’re out of breath.
Due to glycolysis resulting in the accumulation of lactic acid in the muscles, ultimately if it accumulates faster than it can be gotten rid of, it will interfere with the anaerobic glycolysis process and your muscles are going to go all jelly and cease to work as well for a little bit. This is in part why, if you get out of breath when exercising and your body is relying more on anaerobic glycolysis, you get fatigued extremely quickly. In this case, you’re simultaneously creating lactic acid at a much more rapid rate and using up your available glucose molecules faster, but producing relatively small amounts of ATP for those molecules used. Do this for more than a minute or two and it will overtax your skeletal muscles’ ability to produce the needed ATP at the rate you’re using it. (Though, again, your mileage will vary based on your current fitness level.)
Back it off and so you’re relying mostly on aerobic respiration and you’re going to get the most bang for your buck, able to keep going all night long if you keep hydrated and well fed. Slow and steady wins the race.
Unsurprisingly from all of this, the more mitochondria there are, the faster ATP can potentially be produced if the needed molecules are present and the more the muscle can keep on keeping on. As for skeletal muscle, about 2%-8% of the volume of such muscle is mitochondria, though this varies somewhat from person to person depending on your level of physical fitness.
Moving on to smooth muscle, as you may have gleaned from the name, this is smooth with no striations. Found in your hollow internal organs (except the heart), smooth muscles work automatically, helping you digest food, dilate your pupils and take a wee-wee. As an example of smooth muscle in action, in digestion, the contractions themselves are really not too dissimilar to how your heart beat works — fluctuation of electrical potential in the smooth muscle cells which causes the muscle to contract in a rhythmic fashion, in this case called the “Basic Electrical Rhythm” or BER. This rhythm is about three times per minute in the stomach, and 12 times per minute in the small intestines. The sound you are hearing when your stomach and intestines make noise is the result of these muscular contractions mixing and moving chyme (the cocktail of digestive juices, food, microbes, etc.) and air along down the tube between your mouth and your waste disposal port.
As for the mitochondrial needs of these muscles, they are typically approximately that of your skeletal muscles, with mitochondria making up about 3-5% of the smooth muscle volume.
This finally brings us to the real hero of your life story — cardiac muscle. Like skeletal muscle, cardiac muscle is striated and like the other muscle in your body is primarily powered by mitochondria. The cardiac muscles, however, have as much as 10 times the density of mitochondria as your other muscles, at about 35% of the volume of your cardiac muscle.
It should also be noted that individual muscle cells in the heart actually do get regular rest thanks to how the heart beat actually works, which we’ll get into in the Bonus Fact in a bit. But the net result is that about 60%-70% of your life a given part of your heart is actually in a resting state.
Combining these micro-rests with the extreme amount of mitochondria and a large amount of oxygen from the heart’s awesome blood supply, this allows your heart all the ATP it needs to not get tired, assuming you’re not in an extreme state of starvation or doing some extreme form of exercise for extended periods well beyond your normal fitness regime.
On that note, the downside to needing so much ATP thanks to no extended downtime is that the heart really needs to rely on aerobic respiration to make sure it doesn’t run out of ATP, and thus it doesn’t take oxygen being cut off for too long from it before you’re going to have a bad time, unlike other muscles you can just stop using to help recover the needed ATP over time.
And, yes, it turns out the human heart can actually get tired and suffer damage if you’re trying to do some extreme form of physical activity outside your norm for lengthy periods, especially if in a low oxygen environment like at high altitude. In these cases, even the healthiest hearts can suffer damage, though given the other effects on your body of such extreme physical activity, typically most people will stop doing whatever before the heart is negatively impacted in a damaging way. In essence, your legs will give out before your heart does (usually), at least when talking energy supply. But that doesn’t mean in certain cases a measurable level of tiredness in the heart can’t be observed.
For example, in 2001, cardiologists studied a few dozen endurance athletes competing in a 400 km race in Scotland, which comprised of all manner of physical activities from paddling, rope climbing, running, biking, climbing, etc. and the whole event taking almost 100 hours. During this span, the athletes typically only slept about 1 hour per 24 hours during the event and otherwise soldiered on.
The results? At the end of the race, the athletes’ hearts were only pumping about 90% of the volume per beat they’d been managing before the race started.
That said, further research on endurance athletes calls into question the notion of “no permanent damage” being done. For example, researchers involved in a 2011 British study looking at British Olympians who competed in distance running and rowing (and specifically competing in at minimum a hundred events), found that as they aged they showed marked signs of heart muscle scarring, something that can lead to irregular heart function and, potentially, heart failure.
Of course, these are extreme examples, and for most people not doing ultra marathons regularly or competing professionally or semi-professionally in endurance events, this is unlikely to be a problem and the holistic health benefits of regular, vigorous exercise are likely to make up for it even then.
Ever wonder how the heart beat works? Well, wonder no more. In a nutshell, the heart is a four chambered pump. The top two chambers are called Atria, the bottom two are called Ventricles. They are separated from top to bottom by valves; the right and left sides are separated by a septum. So what makes the pump squeeze? When the hearts muscle gets “shocked”, it will contract and force the blood down its path, with the valves not allowing blood to flow back through the system, unless they are defective.
The blood’s path through the heart starts in a vein called the Superior Vena Cava. Then it enters the right atrium, flows through the tricuspid valve into the right ventricle. From there it travels through the pulmonic valve into pulmonary arteries, then the lungs. Now back to the heart and into the left atrium, through the mitral valve. The blood is now in the “strongest” chamber of the heart, the left ventricle. From there it gets pumped through the aortic valve and into the aorta and out to the rest of the body!
So what causes that infamous electric shock the heart receives approximately 60-100 times a minute? Short answer: Dormammu. Long answer: The exchange of electrolytes across specialized cells within the heart build up a differing electrical potential on either side of the cell. When this electrical potential reaches a certain level, it discharges and sends a shock down another unique set of cells within the heart, causing a shock and thus the contraction.
The specific set of cells that regulates the heart rate (in most people) are called the Sinoatrial node or SA node for short. The SA node (pacemaker of the heart) sits in the upper portion of the R atria near the entrance of the superior vena cava.
When the SA node sends out and electrical shock, it immediately shocks the atria. The pulse then gets “held up” in another set of cells called the Atrioventricular node, or AV node for short. This then transmits the impulse down to the bundle of His and then to two pathways called the right and left bundle branches. Then it’s transmitted to the rest of the Ventricles through what are called Purkinje fibers. All together this “shock” causes the atria to contract, then the ventricles. You’re still alive! (For now.)
So what and how do these electrolytes cause this shock? In an attempt not to give a physiology lecture of ungodly proportion, we will simply say that the main two electrolytes involved are sodium and potassium. Potassium normally sits inside the cell, and sodium outside. Potassium slowly leaks outside of the cell and sodium then goes inside the cell. This creates the differing electrical potential that builds up until the point of discharge. Other electrolytes also help in creating this differential, and they are calcium and magnesium. All together the harmony created by this yin and yang system of electrical and mechanical systems come together to make that wonderfully thumping thing inside your chest!
This article originally appeared on Today I Found Out. Follow @TodayIFoundOut on Twitter.
The US Navy has shed light on a previously highly classified project meant to protect aircraft carriers from the grave and widespread threat of torpedoes, and it’s been a massive failure.
Virtually every navy the US might find itself at war against can field torpedoes, or underwater self-propelled bombs that have been sinking warships for more than 100 years.
US Navy aircraft carriers represent technological marvels, as they’re floating airports powered by nuclear reactors. But after years of secretive tests, the US has given up on a program to protect the ships against torpedoes.
“In September 2018, the Navy suspended its efforts to develop the [surface ship torpedo defense] system. The Navy plans to restore all carriers to their normal configurations during maintenance availabilities” over the next four years, the report said.
(Photo by Michael D. Cole)
Essentially, the report said that over five years the program made some progress in finding and knocking down incoming torpedoes, but not enough. Data on the reliability of the systems remains either too thin or nonexistent.
This leaves the US Navy’s surface ships with almost no defense against a submarine’s primary anti-surface weapon at a time when the service says that Russia’s and China’s submarine fleets have rapidly grown to pose a major threat to US ships.
The US ignored the threat of torpedoes, and now anyone with half a navy has a shot
The new class of speedy torpedoes can’t be guided, but can fire straight toward US Navy carriers that have little chance of detecting them.
Torpedoes don’t directly collide with a ship, but rather use an explosion to create an air bubble under the ship to bend or break the keel, sinking the ship.
High-speed underwater missile Shkval-E.
(Photo by Vitaly V. Kuzmin)
Other Russian torpedoes have a range of 12 miles and can zigzag to beat countermeasures when closing in on a ship.
In a combat exercise off the coast of Florida in 2015, a small French nuclear submarine, the Saphir, snuck through multiple rings of carrier-strike-group defenses and scored a simulated kill on the USS Theodore Roosevelt and half its escort ships, Reuters reported. Other US naval exercises have seen even old-fashioned, diesel-electric submarines sinking carriers.
Even unsophisticated foes such as North Korea and Iran can field diesel-electric submarines and hide them in the noisy littoral waters along key US Navy transit routes.
The US Navy can deploy “nixies” or noise-making decoys that the ship drags behind it to attract torpedoes, but it must detect the incoming torpedoes first.
A US Navy carrier at 30 knots runs just 10 knots slower than a standard torpedo, but with a flight deck full of aircraft and personnel, pulling tight turns to dodge an incoming torpedo presents problems of its own.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
NATO is gearing up for its “biggest exercises in many years,” the alliance’s Secretary General Jens Stoltenberg revealed Oct. 2, 2018, according to multiple reports.
Around 45,000 troops will take part in the Trident Juncture exercises in Norway in late October and early November 2018, the secretary said, according to AFP. The “fictitious but realistic” drills, reportedly the largest since the end of the Cold War, come on the heels of the massive Vostok 2018 joint military exercises involving tens, if not hundreds, of thousands of Russian and Chinese troops that were held in September 2018.
In addition to troops, the 29 NATO allies and their partners will send 150 aircraft, 60 ships, and 10,000 vehicles to the training grounds.
The drills come amid heightened tensions with Russia. For instance, US Envoy to NATO Kay Bailey Hutchinson called Russia out on Oct. 2, 2018, accusing it of violating the 1987 Intermediate Nuclear Forces Treaty. Warning Russia that Moscow is “on notice,” she said that the US might “take out the missiles” before they can be deployed if Russia refuses to change course.
Western allies have bolstered their military presence in the years following Russia’s annexation of Crimea. Trident Juncture 2018 is designed to increase interoperability among allied and partner forces to respond quickly and effectively to an external threat, such as Russian aggression.
NATO Secretary General Jens Stoltenberg.
“It will simulate NATO’s collective response to an armed attack against one ally. And it will exercise our ability to reinforce our troops from Europe and across the Atlantic,” Stoltenberg explained Oct. 2, 2018. The aim is preparation for “large-scale military operations” under trying conditions, the Norwegian Armed Forces previously introduced, adding, “Exercises like this make NATO better prepared to counter any aggression, if necessary. “
In an effort to maintain transparency, NATO has invited Russia to monitor the joint military exercises. “All members of the Organisation for Security and Cooperation in Europe, including Russia, have been invited to send observers,” the secretary said, according to Russian state media.
In early September 2018, Russian and Chinese forces, along with a small contingent of Mongolian troops, trained together in eastern Russia, leading to significant speculation about stronger Russian-Chinese ties as both Moscow and Beijing confront Washington.
Russia touted the exercises as unprecedented, claiming that the drills included hundreds of thousands of troops and tens of thousands of tanks and other military vehicles. Many suspect that the joint exercises were actually much smaller than stated.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
Israel maintains it will strike Iranian targets in Syria as long as they ally with Hezbollah and Hamas, both anti-Israel US-designated terror organizations that operate near Israel’s borders.
Despite the near constant stream of powerful countries bombing targets in Syria, and Syria’s weak attempts to defend against the attacks, Russian President Vladimir Putin’s aide in charge of foreign military assistance said Syria had “everything it needs.”
Israel has long wanted Russia to withhold its more powerful defenses from Syria.
Israel is in charge now
Israel stomped on Russian-made Syrian air defenses on May 9, 2018, in the largest Israeli Air Force attack in Syria since the two countries went to war in 1973. The massive battle saw Syria’s older Russian-made air defenses outmatched — and obliterated.
Israel has carried out strikes with the express purpose of beating down Iranian forces in southern Syria. By all accounts, the attacks succeeded in taking out command posts, infrastructure, and munitions. Israel won’t tolerate a buildup of Iranian forces along its borders in Syria as Iran explicitly seeks to destroy Israel.
Though Israel has engaged in more than 100 airstrikes in Syria since 2012, mostly against Iranian-linked forces, it has treaded softly and attempted to avoid a larger war.
Without new reinforcements like Russia’s S-300, and with the former defenses laying in ruin, Iranian forces in Syria will be greatly exposed to Israeli air power.
Russia may continue to trade with Tehran after the US imposed sanctions following its withdraw from the Iran deal, and continue to be Iran’s ally on paper. But Russia, by denying Syria air defenses, looks to have turned its back on supporting the regional ambitions of Ayatollah Khamenei.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
This article contains spoilers from “Game of Thrones” Season 8 Episode 4: “The Last of the Starks.”
Really, though, if you haven’t seen “The Last of the Starks” go watch it, call a loved one, and then come back because we’re going to break down the military failures tactics from the episode. You should know going into this that I’m pretty pissed off about it.
Here we go.
King’s Landing would later be built upon the site of the Aegonfort, but this map shows the distance from there through Blackwater Bay to Dragonstone is estimated at under 500 miles.
In the final twenty minutes of last night’s episode, Euron Greyjoy’s fleet managed to ambush Daenerys Targaryen in broad daylight about 400 miles from the last known location of her enemy. Worse, Greyjoy’s first volley took out Rhaegal, one of her surviving two dragons. This should never have happened. Ever.
At the very least, Daenerys should have prepared for an ambush from the castle of Dragonstone or its surrounding waters.
She knew her enemy would expect her to return there to stage her attack on King’s Landing.
She knew her enemy had developed weapons capable of attacking the dragons.
She knew her enemy not only had access to wildfire, but the will to use it at sea and against the population as needed.
Advancing on Dragonstone should have been conducted with caution. Where the f*** were her advanced scouts? And more importantly, where was her ISR???
Euron Attacks Daenerys | Rhaegal Death | Game of Thrones S08E04
This stupid WW1 pigeon is more useful than two of the most dangerous predators on the planet and a cognitive human with ancestral powers and multiple battles under her belt…
Intelligence, Reconnaissance, and Surveillance are some of the most critical military components if one hopes to achieve victory against the enemy. You have to know where your enemy is if you want to defeat them.
Daenerys has global air superiority and she can literally see her enemy from dozens and dozens (if not hundreds — I don’t know how high the dragons can fly) of miles away — well beyond the range of medieval SAMs.
I would think that after the scorpion missile struck Drogon during the Loot Train Attack, Daenerys would have been more cautious against the Lannister threat.
She should have surveilled Dragonstone and Blackwater Bay from a safe distance for the Iron Fleet and scanned Dragonstone for signs of scorpion sites or occupation. Then an amphibious insertion of Unsullied should have infiltrated Dragonstone under the cover of darkness and cleared every damn room and cave of personnel and wildfire.
When Tyrion was outmaneuvered at Casterly Rock and Highgarden was taken, his enemy defeated his good plan with a better one.
When Yara’s fleet was ambushed by Euron’s, it was because he built a stronger naval force and attacked her when she was overconfident and vulnerable.
When Viserion was killed, it was shocking and painful — but earned. It established the White Walker’s physical strength and the threat they posed to the dragons — just as the scorpion did in the highlands.
But this? Eleven ships sitting in the open on a clear day in contested waters somehow managed to sneak up on an air force? It’s cheap. It does a disservice to clever characters and it makes the viewing experience unsatisfying.
Still, I remain hopeful that the showrunners have set up our heroes as the underdogs at their lowest so their upcoming victory will feel that much more gratifying.
Then again, it’s Game of Thrones and we’re not allowed to have nice things.
Flight deck operations on an aircraft carrier have often been compared to a ballet. Sailors at work on a flight deck wear an assortment of colored jerseys to specify their job. The yellow shirt is one of the most coveted.
The aviation boatswain’s mates who work on the flight deck of the aircraft carrier USS Nimitz are directly responsible for the handling and maneuvering of aircraft as well as the safety of all personnel during flight operations. Any mistake or lack of better judgment can cause damage to equipment or injury to personnel on the flight deck.
“At first being a yellow shirt was scary, but now that I have some confidence, I would say there is a sense of pride,” said Petty Officer 3rd Class Melanie Cluck, an aviation boatswain’s mate. “On the flight deck, we are not only responsible for directing aircraft, but also for directing people. Normally, anyone who needs guidance on the flight deck looks for a yellow shirt. Safety of all the personnel on deck is a big part of our job as well. So we don’t only need to know our job, but everyone else’s as well.”
Before donning the sought-after yellow jersey, aviation boatswain’s mates wear blue jerseys to indicate that they are in a more junior status. These sailors are normally newer airmen who have yet to acquire all of the necessary qualifications. Their main responsibilities during flight operations include chocking and chaining, running elevators, and tractor operation.
“Being a blue shirt is hard work, but it makes you tough,” said Seaman Michael Lothrop. “It’s hot up there right now, and we work long days, but you have to be on alert at all times and ready to get the job done whenever you are needed.”
Blue shirts are normally covered in grease and always carrying something heavy, whether it be a chain, tractor bar, or chock. They play a big part in the maneuvering of aircraft on the flight deck because they do most of the hands-on work. During their time wearing blue, they learn the ins and outs of properly directing aircraft, which helps build the foundation of a high-performance yellow shirt.
The job requires attention to detail and an extreme amount of knowledge to be performed well. The training and the number of hours a sailor needs to put in to become a yellow shirt is impressive.
“There are two main qualifications you get as a blue shirt, but from there, it’s all about if your chain of command sees you have the initiative to take on being a yellow shirt,” Cluck said.
Earning the Yellow Shirt
Sailors must qualify as flight deck observers and learn directing and handling in addition to the qualifications all sailors are required to attain when they report to Nimitz. The requirements take roughly 12 weeks to complete. Sailors then take a written and oral test administered by the flight deck leading petty officer, assistant LPO, and any other yellow-shirt-qualified chief petty officers or first class petty officers who decide to attend.
Once sailors earn the right to wear the yellow jersey on the flight deck, they enter an apprenticeship period called “under inspection.” This means they need an experienced yellow shirt to help them along the way toward becoming an expert at their new job on the flight deck.
UI yellow shirts are always accompanied by a seasoned mentor who is observing every signal and decision they make.
“It’s a case-by-case basis on how long the UI process takes,” Cluck said. “The process is just there to make sure you fully understand what you are doing on the flight deck. It’s extensive work to say the least, but it helps you build character. The goal of the process is just to build you up to be the great yellow shirt you are supposed to be.”
Yellow shirts have to communicate through hand signals with pilots and other personnel working on the flight deck to safely move aircraft onto the catapults and off of the landing area.
“You have to be able to really get control of your aircraft and understand the pilot,” Cluck said. “It’s a gut feeling that you develop during your training. If you feel you need to slow the aircraft down, you can, and you start to learn when exactly to turn it. We have hundreds of hand signals we can use to take control of the aircraft on deck. The people in the pilot seats are officers, so you have to be professional, and every motion you make has to be crisp and precise to prevent accidents.”
The working environment of a yellow shirt is unlike anywhere else on the ship. The yellow shirt locker, or crew area, is on Nimitz’ flight deck. The tight-knit group of men and women spends their time out of the scorching heat joking, laughing, and preparing to launch multi-million dollar aircraft into the sky. It is here where the instructors of the world’s most dangerous ballet reside. It is here where the yellow shirts dwell, mentally preparing themselves to launch aircraft as their ship sits at the tip of the spear.
“We are supposed to have our PCS Move in a couple of months and have not heard anything. We are still PCSing, RIGHT?!”
Your neighbors and peers are getting assignments left and right. Every time you hear of a new assignment drop, you can’t help but judge their next base.Regardless if it’s a dream location or one that you would like to avoid, there is a sense of jealousy for the fact that they at least KNOW where they’re going.
That’s when it happens. You get the phone call, email, tap on the shoulder, whatever it is, that you have been (im)patiently waiting for.
“Congratulations! Your next assignment is ___________.” Is this a joke? There’s actually a military installation there?
I’ve only ever heard it referred to as the location that you spend your whole career trying to avoid. I’ve heard others even console themselves after receiving a less-than-ideal assignment by saying, “well at least it’s not ___________.”
What do you do in this situation?
I’ll tell you what you do.
You hold your head high and hope for the best. Chances are, you only have a split second to figure out your emotions before people start looking for your reaction.
And guess what? Your reaction to this news is what sets the stage for the rest of your move.
Everyone puts together a “dream sheet” of assignments, whether actually written down on paper or just in your head. You imagine all of the amazing places the military could send you.
It’s time to let go of all of that.
Your past wishes and desires for assignments don’t matter anymore (at least not right now). Turn your new assignment into your first choice and make yourself believe that it’s what you have wanted all along.
Our very first assignment drop was a public event. My husband stood in front of a room full of people as he was told where he would be going next, while I sat in the audience.
We were waiting to hear whether we would be living on the East Coast or West Coast. When my husband was told that we would be moving across the globe to a remote island, my world was rocked.
Everyone around me immediately turned to see my reaction, mouths wide open. Someone asked, “Is that what you wanted?” I was numb and don’t even know how I managed to get any words out, but I responded, “It is now.”
I have tried my best to keep this mentality EVERY time we move. I try to get excited for any assignment and research everything I can about our new “home.” It’s not always easy, especially when you are leaving a fantastic place for the unknown, but it sure makes moving a lot easier when you’re looking forward to the place you’re going.
2. Go Straight to the Source
Most of what you have probably heard about this new location is hearsay. You’re likely hearing rumors from people that have NEVER been there before. Before you get all riled up, try speaking to people that have been there recently, or better yet, are currently there.
One of the best resources I have found for gathering intel on a new duty station has been social media. Simply type your new duty station into the search bar of Facebook and you will probably find a number of informational pages.
Join the local classifieds pages, spouse pages and activity pages. Here you will be able to ask any questions you might have and receive up-to-date answers.
3. Debunk the Rumors
Each duty station has a number of rumors associated with it, whether good or bad. Try to figure out why your new assignment has a bad rap and focus on the positives. Here is an example for our current assignment:
“There is nothing to do.”
“Think about all of the family time we will have. We can go camping, hiking, horseback riding, check out local farms and attend rodeos.”
There will always be something to do and places to explore, but you have to actively search for them.
“It’s in the middle of nowhere.”
“We can do road trips on the weekend and see parts of the country we’ve never seen before.”
Attempt to find the silver lining to each of the negative statements. Maybe even make it a challenge to dispel each of the rumors during your time at your new location.
4. It’s Only Temporary
Do you remember how quickly your last assignment flew by?
Be prepared for that to happen again.
Three years (plus or minus) is not a lot of time in the grand scheme of things. Make the most of your assignment and get to know a new part of the country (or world!) in the short time that you are there.Make a point to visit that local landmark, attend the parade downtown, see the state park and just go for a drive.
Immerse yourself in the local culture and get to know your new home. If you’re not careful, it might be time to move again before you even got to know this new town.
5. Remember that Attitude Is a Choice
You, and only you, can decide how you feel about something. You can make the choice to be excited about a new assignment, or you can choose to dread every minute of it.
Don’t be tempted by those around you trying to bring you down.
When you tell people where you are going next, you might hear, “I’m sorry” or, “Maybe you’ll get a good assignment next time.”
They might be trying to be sympathetic, but in a sense they are peer pressuring you into feeling lousy about your assignment.
You still have a choice. You can still choose to look forward to your move. You can still choose to stay positive.
Finally, appreciate the fact that you have been given the opportunity to experience a place that you most likely would not have lived had it not been for the military.
I am often told by civilians that I am “so lucky” to move every three years and travel the world. Even though PCSing most definitely has its ups and its downs, I do try to remind myself that we REALLY ARE lucky.
I have made friends all over the world.
Ihave artifacts from each of our assignments proudly displayed in our home.
I have lived in the Deep South, the West Coast, a foreign country and the Great Plains.
I have a greater understanding and appreciation for new people that I meet.
The military has provided me with wonderful opportunities to try new places and has really shaped me as a person. I am more resilient, more patient and more curious than before.I have to remember that each assignment, no matter where it is, is simply adding to my life experience.
This article originally appeared on Military Spouse. Follow @MilSpouseMag on Twitter.