If you believe in any one of the above statements, then it might take a little rearrangement and remapping of your brain to understand the real cause of weightlessness. Continue reading this part of Lesson 4 to find out the real reason. None of these are appropriate reasons for the weightless sensations experienced by orbiting astronauts. the astronauts are far from Earth's surface at a location where gravitation has a minimal effect. space is a vacuum and there is no air resistance in a vacuum.ĭ. space is a vacuum and there is no gravity in a vacuum.Ĭ. there is no gravity in space and they do not weigh anything.ī. Test your preconceived notions about weightlessness:Īstronauts on the orbiting space station are weightless because. Consider the following multiple choice question about weightlessness as a test of your preconceived notions on the topic: However, the stubbornness of one's preconceptions on the topic often stand in the way of one's ability to understand. The cause of weightlessness is quite simple to understand. Unfortunately however, many people have difficulty understanding the causes of weightlessness. Not only are the sensations the same (for astronauts and roller coaster riders), but the causes of those sensations of weightlessness are also the same. These sensations experienced by orbiting astronauts are the same sensations experienced by anyone who has been temporarily suspended above the seat on an amusement park ride. Astronauts who are orbiting the Earth often experience sensations of weightlessness.
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