What are the benefits of living in space?
Everyday benefits of space exploration
- Improving health care.
- Protecting our planet and our environment.
- Creating scientific and technical jobs.
- Improving our day-to-day lives.
- Enhancing safety on Earth.
- Making scientific discoveries.
- Sparking youth’s interest in science.
- Cooperating with countries around the world.
Can you light a fire in space?
Fires can’t start in space itself because there is no oxygen – or indeed anything else – in a vacuum. Yet inside the confines of spacecraft, and freed from gravity, flames behave in strange and beautiful ways. They burn at cooler temperatures, in unfamiliar shapes and are powered by unusual chemistry.
Why does your head explode in space?
Oxygen in the rest of your body will also expand. You’ll balloon up to twice your normal size, but you won’t explode. Without air in your lungs, blood will stop sending oxygen to your brain. You’ll pass out after about 15 seconds.
What happens to smoke in space?
Practically speaking, sparking up a fire in the oxygen-rich environment of a space station could result in hungry balls of flame spreading in every direction that there’s fuel to burn. (Scientists and stoners can agree: That’s a serious buzzkill.)
Would a gun work on the moon?
Yes, you can fire a gun on the Moon, despite the absence of oxygen. A gun “fires” because of a sudden impulse delivered to the gunpowder by the trigger. Despite the abundance of oxygen on Earth, however, most gun ammunition comes with its own oxidizer “built in”, so to speak.
Can a bullet make it to space?
Yes. Bullets carry their own oxidising agent in the explosive of the cartridge (which is sealed, anyway) so there’s no need for atmospheric oxygen to ignite the propellant. Once shot, the bullet will keep going forever, as the universe is expanding at a faster rate than the bullet will travel.
Could you shoot a bullet from the moon to Earth?
Thanks for this. Just remember, you cannot simply aim your gun AT the Earth if you want to shoot it from the Moon though, but rather you have to aim towards where the Earth will be in its orbit in several days time.
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.
Would a gun fire underwater?
No, you should never fire a gun underwater. Once you get your gun underwater, the barrel almost immediately fills up with water. All that water in the barrel has to be pushed out by the bullet. Depending on the length of the barrel, the weight of all this water might be several times heavier than the bullet itself.