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Law of Conservation of Angular Momentum (May 3, 2010)
Description
This demonstration illustrates the principle of conservation of angular momentum by utilizing a rotating chair and handheld weights. When the demonstrator pulls the weights closer to their body, their rotational speed increases significantly. Conversely, extending the weights outward causes the rotation to slow down. This is the same physical phenomenon observed in ice skaters as they adjust their arms to control the speed of their spins.
Original title
חוק שימור תנע זוויתי (3 במאי 2010)
ההדגמה מציגה את עקרון שימור התנע הזוויתי באמצעות ישיבה על כיסא מסתובב ושימוש במשקולות יד. כאשר המדגים מקרב את המשקולות אל גופו, מהירות הסיבוב שלו עולה משמעותית, ולהיפך – הרחקתן גורמת להאטת הסיבוב, כפי שניתן לראות גם אצל מחליקים על קרח.
Video transcript
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