Gravity explained by a trivial experiment (VIDEO)
Gravitational pull appears to be one of the most difficult concepts to understand, however an American physics teacher found a brilliant method to explain it.
The main question here is: What is gravity? or How would you explain gravity if asked to? Probably most folks would try a theoretical explanation of the principles that underlie it.
In the video below, teacher Dan Burns chose an alternative way to explain one of the most difficult concepts in physics and to achieve that he used just a large sheet of spandex, some marbles, and a couple weights.
Gravity visualized in simple experiment (Capture: Youtube)
For example, by placing two nearly identical weights on the sheet of spandex (nicknamed “space-time” expanse) and subsequently dropping some marbles on it, he could explained how humans used gravity to determine the return trajectories of spacecrafts heading for the moon.
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For physics enthusiasts interested to repeat the experimental on their own, the needed information are already available on the internet along with several other equally interesting ideas whose tutorials can be downloaded here.
Video: Gravitation explained in simple experiment