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How to Play a Singing Glass
Description
Discover how rubbing your finger along the rim of a wine glass creates resonance to produce pure, crystal-clear tones, and learn how the water level affects the pitch of the sound. This experiment demonstrates the fundamental principles of wave physics, vibration, and acoustics in a simple and fascinating way you can try at home. It explains step-by-step how the glass's vibrations disturb the surrounding air to create the sounds we hear.
Original title
איך מנגנים על כוס? (כוס מנגנת)
גלו כיצד חיכוך האצבע בשפת כוס יין יוצר תהודה ומפיק צלילים זכים, ומה הקשר בין כמות המים בכוס לגובה הצליל. הניסוי מדגים עקרונות בפיזיקה של גלים, רטט ואקוסטיקה בצורה פשוטה ומרתקת לביצוע בבית, תוך הסבר על האופן שבו תנודות הכוס מרעידות את האוויר סביבה.
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