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How does space junk affect us? If space junk collides with another body, it can break off and produce more fragments. There is a possibility this junk in orbit will eventually be pulled down by Earth's gravity. Can we see Earth live from satellite? Yes, you can now watch livestreams ...
When you return to Earth's gravity, those fluids will be pulled back down to your legs and away from your head, causing you to feel faint when you stand up. But you will also begin to drink more, and your fluid levels will return to normal in a couple of days. Space Anemia As you...
You would put oneplant in a room with normal gravity, and another in a room with no gravity. But wait a minute! There is no such thing as a no-gravity room on Earth.But the Space Station has them! Everything is weightless on the Space Station. That makes it a great laboratory for...
Imagine you place a cannon atop a mountain and fire it horizontally. The cannonball will travel parallel to Earth's surface for a little while but will eventually succumb to gravity and fall to the ground. Now imagine you keep adding gunpowder to the cannon. With the extra explosives, the ...
Have you ever thought about how astronauts wash their clothes without gravity? It’s not easy. There’s no washing machine on the International Space Station (ISS,国际空间站). Luckily, this may not be a problem in the future. Russian scientists are making a special (特别的) washing machine...
四、阅读理解Have you ever thought about how astronauts wash their clothes without gravity? It's not easy.There's no washing machine on the International Space Station (ISS,国际空间站). Luckily, this maynot be a problem in the future.Russian scientists are making a special(特别的) washing ma...
NASA Johnson Space Center (NASA-JSC) In addition to using the bathroom regularly, astronauts need to do all of the same things they do on Earth, including eating and sleeping. Of course in space, the lack of gravity makes everyday activities not so ordinary. With no refrigerator on-...
That's why we need to look at Einstein's later theory, theGeneral Theory of Relativity, which describes how gravity affects the shape of space and flow of time. Imagine a stretched-out sheet. If you place a bowling ball in the middle of the sheet, the sheet will warp as the weight ...
C A. It's the first rice experiment in space. B. The gravity on Earth will influence the growing of the rice. C. It's the first experiment to try to produce rice in a complete life cycle. D. If it works, the newly produced rice plant will be brought back to Earth.40. What ...