Category : Essays
YOU NEED:
This one does not need any apparatus. This experiment can be done in the head. Just imagine that
bolts are placed together so that their three dimensional spiral structures, called a helix, intermesh with,
each other as shown in the illustration.
Now move the bolts around each other in your mind. It will be similar to twiddling your thumbs holding each
head so as not rotate it. Move the bolts in the direction of the arrow. Will the heads
i) Come close to each other
ii) Move away from each other
iii) Or be static?
Solution : You will be surprised to learn that the answer is iii) .It is comparable to a situation where someone is
up an escalator moving downwards.
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