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As on Earth, in order to get something to spin around you have to give it an off-center push. On Earth things that spin eventually slow down and stop unless you keep pushing them. This is because of friction between the object and other objects or friction between the object and air. In space where there are no other objects nearby and where there is no air, things can spin forever without the need to keep pushing on ...
Simply put, a spacecraft moving along in space will continue as long as all external forces are balanced. Try this: hold a ball in your hand with your arm outstretched. Why doesn't ... called an ellipse. Why? Because the centrifugal force on the ball due to its speed around the center of the Earth will be counteracted by the force of Earth's gravity. This will cause the ball to speed up and slow down as it proceeds around the orbit, but it will continue along the orbital path indefinitely. Now if the spacecraft ...
... rotating disk, which in turn caused the balls of dust and gas to rotate, which in turn caused the newly formed planets to move around the Sun, and also to spin.
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Answer provided by Ed Frederick, Ph.D.
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie ...
... . First, many things work the same in space as they do here on Earth and light is one of those things. We see things either because they reflect light—we see most things this way—or because they produce their own light, like light bulbs, the Sun, and the stars. We see people by the visible light that they reflect so people in space will look the same as on Earth as long as light is shining on them. Next, people would look different in space than they do on Earth because in space people have to wear spacesuits in ...
... there are an infinite number of dimensions in space. Some new ideas, called string theory, describe the structure of atoms and the Universe using thirteen dimensions How can there be more dimensions ... promising ideas that can describe both gravity and how atoms are put together. This is something that no single physical theory can currently do.
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Answer provided by Luke Keller, Ph.D.
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... so we know how and when to reach the hotel in space.
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Answer provided by Robert T. Bigelow
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
Image:9781894959421.jpg '''Buy This Book''' http://www.apogeebooks.com/Books/For%20Kids/KidstoSpace.html Click here
Category:Kids To Space
Category:Kids To Space - SPACE ...
... disappears in weightlessness—but it can still happen. The reason that snoring is so infrequent in space may have something to do with the compression that gravity usually produces on our bodies. In weightlessness there is no compression of the tissues in the neck around the airway. As ...
... in space. Indeed, the Sun's gravity extends all the way out to the farthest planets and beyond. That is what keeps the planets from escaping from our solar system. And they do ... , Ph.D.
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
Image:9781894959421.jpg '''Buy This Book''' http://www.apogeebooks ...
... is a lot of fun to float in space, and yes, you would float like the astronauts in the movies, but better since you are actually in space
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Answer provided by Byron Lichtenberg, Ph.D.
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by ...
... technologies in space. Many technologies used on Earth are used in space including computers, plastics, machines, high-performance fabrics and materials, chemical processes, and even agricultural technologies. The newest technology now being used in space is probably nanotechnology, in the form of ...
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