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How to Balance a Glass on a Banknote
Description
Discover how the laws of physics and the center of mass make it possible to perform a spectacular stunt where a glass balances steadily on a banknote held in mid-air. By simply folding the bill into a zigzag shape, we increase its moment of inertia, creating a wide and sturdy base capable of supporting significant weight. This simple home experiment perfectly illustrates the fundamental principles of engineering and load distribution.
Original title
איך להעמיד כוס על שטר כסף
גלו כיצד חוקי הפיזיקה ומרכז המסה מאפשרים לבצע פעלול מרהיב שבו כוס עומדת ביציבות על שטר המוחזק באוויר. בעזרת קיפול פשוט של השטר לצורת זיגזג, אנו מעלים את מומנט ההתמד שלו ויוצרים בסיס רחב וחזק שיכול לשאת משקל רב. ניסוי ביתי פשוט הממחיש עקרונות של הנדסה וחלוקת עומסים.
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