How is the life of an astronaut?
During their stay on the International Space Station (ISS) astronauts have to continue living and working in an environment that is very different to that here on Earth. They still need to keep clean, go to the bathroom, eat and drink and keep fit and healthy.
What is a good sentence for astronaut?
Astronaut sentence example. Buzz Aldrin is a retired astronaut and part of the first lunar landing of Apollo 11. This is absolutely incredulous, requiring one to connect with ancient astronaut theories or Atlantis myths. He said he was a lawyer, an astronaut , a doctor…
What do astronauts need to survive in space?
Astronauts must have oxygen, food, water, and rest. These needs are usually simple to meet on Earth; to meet these needs in space is very complicated. The gases in space cannot support human life. In fact, most of space contains no gases at all—it is what scientists call a vacuum.
Can you live in space forever?
It protects the astronauts from the cold of space, gives them air to breathe, and protects them from all that nasty radiation. Again, though, it’s not safe for people to live their forever, and being in space for a long time isn’t good for your body.
Can a bullet reach space?
No, this is not possible. If the bullet had enough speed so that it makes it out of the atmosphere and still has more than escape velocity, then it is on a trajectory leaving earth and not in orbit. It is not possible to achieve orbit without at least a second acceleration period changing the focal point.
Can a falling bullet kill you?
Falling-bullet injuries Bullets fired into the air usually fall back with terminal velocities much lower than their muzzle velocity when they leave the barrel of a firearm. Nevertheless, people can be injured, sometimes fatally, when bullets discharged into the air fall back down to the ground.
Would a bullet travel faster on the moon?
So, neglecting air resistance, the bullet will go about 6 times farther on the Moon than on Earth. Once you take air resistance into account, the Moon bullet has an even bigger advantage! The moon’s escape velocity is about 2.38 km/s, but a bullet typically travels at only about 1 km/s.
How fast would a bullet travel in space?
At 9000km altitude, escape velocity is about 7.1km/s. A rifle’s muzzle velocity is around 1km/s, so a bullet fired from a stationary position would either be caught in an orbit or eventually fall to Earth, depending on the direction of fire.
How long would a body last in space?
You wouldn’t lose consciousness straight away; it might take up to 15 seconds as your body uses up the remaining oxygen reserves from your bloodstream, and — if you don’t hold your breath — you could perhaps survive for as long as two minutes without permanent injury.
What would happen if an astronaut took off his helmet?
Occasionally during astronaut training, an astronaut’s helmet accidentally comes loose in a vacuum chamber or something like that. (They always survive, by the way.) When you’re exposed to vacuum, the air in your lungs is forced out through your mouth.
How far will a bullet travel in water?
Typical bullets can travel just a few feet through the water before they’re slowed to a stop. CAV-X bullets can reportedly travel 60 meters underwater, and can go through 2 centimeters of steel fired from 17 meters away, indicating that it could even be used to penetrate submarines.
Can a bullet kill you underwater?
Hiding underwater can stop bullets from hitting you. All supersonic bullets (up to . 50-caliber) disintegrated in less than 3 feet (90 cm) of water, but slower velocity bullets, like pistol rounds, need up to 8 feet (2.4 m) of water to slow to non-lethal speeds.
Can u shoot a gun underwater?
No, you should never fire a gun underwater. There are some pretty common things that happen to guns underwater. Water causes issues with the ammunition, the action, and the projectile ballistics. Once you get your gun underwater, the barrel almost immediately fills up with water.
Can a gun work underwater?
“Can a gun fire underwater?” Absolutely! Because standard ammunition does not work well underwater, a common feature of underwater firearms is that they fire flechettes , or spear-like bolts instead of standard bullets. These are usually fired by pressurized gas.
Can AK 47 fire underwater?
Thanks to the team at Smarter Every Day and The Slow Mo Guys, the AK-47 is also a way to learn about physics! Underwater, the bullet travels only about 5 to 6 feet (in the air, it can travel some 1,300 feet). That’s neat if unsurprising; water is much denser than air and puts up greater resistance.
What happens if bullets get wet?
The safe answer is “NO!” There are differences in how moisture resistant certain types of ammo can be. Due to the construction of the cartridge, even limited exposure to the elements can result in moisture damage. If you drop your rimfire cartridge in the snow or it gets wet in the rain, it should not be used.
What Glocks do police use?
By far the most popular police service pistol in the United States, the GLOCK 22 fires the potent 40 S&W cartridge and holds more rounds for its size and weight than most other full-sized handgun in its class.
Is Glock waterproof?
Glocks will cycle underwater. However the Russians make an underwater assualt rifle that could be made into a pistol.
Why do Glocks shoot low?
One thing that can cause you to hit low is dragging your trigger finger along the bottom of the trigger guard while shooting, it’s common for people to do with Glocks. Another thing is “milking the grip” when the rest of your fingers, particularly your pinky and ring finger, contract slightly as you pull the trigger.
Why am I shooting my pistol low?
It’s not what they are used to and subsequently causes them to fight the gun to keep it under control, resulting in involuntary movement of the gun at the anticipated instant of discharge, which pushes the gun forward to counteract the recoil. This results in hits placed low or below the target.
Why are my shots low and left?
Your subconscious sends a signal to your hands, just before your finger breaks the shot, that to counteract the “up & right” motion soon to come, that they should negate this movement my pushing the gun down and to the left or in some cases heeling it forward.
Is it hard to shoot a Glock?
In general, yes… but only marginally. Glocks are simpler to operate than some other semiauto pistols, as they have no external safeties to contend with. The real issue is that pistols, in general, are hard to learn to shoot well … and the smaller the pistol, the harder it gets!