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Because if weighted properly, they can be neutrally boyant. In other words, they're as close to weightless as they can get on earth. The astronauts train underwater to give them a sense of what its like to do their task while weightless and also to practice the peocedures required for their task. The first astronaut to take advantage was Buzz Aldrin when he trained for his Gemini 12 mission. Aldrin was and is still an avid Scuba diver. He noticed the similarity between water and space. His succees on Gemin 12 made underwater training the norm for all astronaut extravehicular training.
The buoyancy of water is using to simulate zero gravity, because the arms and legs have very little effective weight underwater, but still have mass. The difference between underwater and zero G is that water still resists motion. In a true weightless condition (in an air-filled spacecraft or the vacuum of space), there is almost no resistance.
Underwater, the heavy spacesuits with air inside can weigh almost nothing. So by varying the buoyancy, they can simulate either zero-G or a gravity less than on Earth. In a simpler way of putting it: They train in a 600 gallon tank of water in real space suits, to achieve the feeling of weightlessness.
Having neutral buoyancy underwater simulates the weightlessness the astronauts will experience in space.
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What kind of machines are astronauts trained on to simulate being in space?
They use centrifical force machines to duplicate high G-forces. They train underwater to simulate weightlessness.
Are astronauts being affected by gravity?
yes
What was the surname of American in space?
Neil Armstrong (R.I.P.) is probably the most famous of America's astronauts, as he is credited with being the first human being in history to walk on the surface of the Earth's Moon.
SpongeBob dihybrid practice with answer keys?
just do the work. stop being lazy
What was Oprah Winfrey first job?
after being a student she dived into broadcast media working at a Nashville's radio station
How could working underwater help astronauts being in space?
Having neutral buoyancy underwater simulates the weightlessness the astronauts will experience in space.
What kind of machines are astronauts trained on to simulate being in space?
They use centrifical force machines to duplicate high G-forces. They train underwater to simulate weightlessness.
What is it called when you are completely underwater?
Being completely underwater is referred to as being submerged.
How long do people stay being astronauts?
they stay as astronauts for 6 or more months
Are astronauts being affected by gravity?
yes
What is the underwater building being explored by divers?
There are many items underwater that are found in many places.
Do astronauts die in space?
Well, some astronauts do. Not all astronauts will die in space, but some will if the mission went wrong or if it is just being there when you die of natural causes.
Is the Etrex Garmin waterproof?
The Etrex Garmin is water resistant, as it can take a splash or occasional dunk in the water and keep on working. Though it is not waterproof to the point of being able to work underwater.
Name three ways a crocodile needs to adapt to live underwater?
by being cold blooded by having second eyelids and by being able to breath underwater
Holding your breath under water?
Holding your breath underwater is when your head/face is underwater and you do not breath.
How do you memorize things without being nervous?
Practice,practice,practice
Underwater building being explored by divers in Egypt?
Atlantis
