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J. Perelman
"Entertaining physics". Book 2.
Chapter 3. Circular motion

THE FINALE OF OUR DISPUTE

Now let me give you an advice on how to win this dispute. You need to take with them on "devil's swing" spring scales, to put on a Cup of a weight, such as 1 kg, and keep track of the position of the pointer: it will show the same marked on weights weight, exactly one kilogram. This is proof immobility swing.

Indeed: if we together with a spring balance was describing circles about the axis, a weight, in addition to gravity, would also centrifugal effect, which in the lower part of the path would be the weight of the kettlebell, and the upper would reduce it; we have to notice that the weight becomes heavier, it weighs almost nothing. And if this is not observed, then rotates room, not us.

Entertaining physics J. Perelman

 




System Orphus

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