Yes it is. Einstein had already stated this in his famous paper about The Theory of Relativity, Matter and energy are interconvertible. The Energy E and matter of mass m has the relation in equation form as E=mc^2, where c is the speed of light.
Of a sort, yes. We can create a gravity like effect on a spacecraft by making it spin.
Not yet, unless you count aircraft.
The International space station is constantly falling towards Earth under the pull of Earth's gravity (Just like any other object - gravity does not stop when you reach space!). However the Station is moving very fast horizontally and, as the Earth is a sphere, this means that as it falls its path takes it round the Earth in a circle - it is in "orbit". This means that if you are in the space station you are falling as fast as gravity can pull you and therefore you do not feel the pull of gravity, making you weightless.
That depends; what exactly do you expect such a "gravity machine" to do? * Any mass will exert a force of gravity. * Artificial gravity (an imitation of gravity) can be produced through quick spinning. * Other types of "artificial gravity" appear in science fiction stories, but they don't appear in current technology, and it seems unlikely that they will be, any time soon.
The only way to produce "artificial gravity" (an imitation of gravity, you might say) is through acceleration. The effects are the same; an experiment won't notice the difference. Acceleration can be provided (a) by going faster and faster, (b) by slowing down, (c) by uniform rotation (an acceleration towards the center).
If you mean do any manned spacecraft use artificial gravity, the answer is, not so far. But, in the future, large spacecraft may create artificial gravity by rotating them. To conserve fuel, the gravity of the moon/planets is used to pull spacecraft toward them. And of course the gravity of earth is used to hold/pull on spacecraft so they orbit (circle) around it instead of flying off into space.
Air makes parachutes possible. Gravity makes them necessary.
As of 2010, artificial gravity technology has not been invented.
I don't think it would be possible unless there was some sort of artificial gravity. Otherwise, the water might float away from the fish, and thus no breathing.
The International space station is constantly falling towards Earth under the pull of Earth's gravity (Just like any other object - gravity does not stop when you reach space!). However the Station is moving very fast horizontally and, as the Earth is a sphere, this means that as it falls its path takes it round the Earth in a circle - it is in "orbit". This means that if you are in the space station you are falling as fast as gravity can pull you and therefore you do not feel the pull of gravity, making you weightless.
The lack of gravity and exposure to artificial gravity severely weakens bones.
Rephrase this question
it is a 0 gravitatial spacecraft
That depends; what exactly do you expect such a "gravity machine" to do? * Any mass will exert a force of gravity. * Artificial gravity (an imitation of gravity) can be produced through quick spinning. * Other types of "artificial gravity" appear in science fiction stories, but they don't appear in current technology, and it seems unlikely that they will be, any time soon.
It's possible. There is a zero gravity area in the sea.
There is no such thing as artificial gravity Another Answer: Actually there is such a thing as artificial gravity. At least it can be made. Build a huge round object in the shape of a donut. Spin this object and centrifugal force will allow you walk and stand perpendicular to the sides. Another way is the use of magnets located on bottoms of shoes.
The term "artificial gravity" refers to using science technology to create gravity. This is usually desired by astronauts and space organizations such as NASA to keep their astronauts healthy and to minimize the effects of weightlessness on astronauts during long term space travel.
No, but the centre of gravity need not be inside the object. Not unless Gravity is not a variable. But it is not possible for an object to not have a center of mass.
We can create conditions that 'mimic' gravity, and provide the familiar 'downward' forcethat we need in order to remain oriented and feel normal. But it's not gravity.