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Ballerina in a Bottle
Description
This experiment demonstrates how changes in pressure affect the buoyancy of an object inside a water bottle. By squeezing the sides of the bottle, we alter the volume of air inside the "diver," causing it to sink or rise in a way that looks almost like magic. The experiment illustrates fundamental physical principles, specifically Archimedes' principle and the compressibility of gases.
Original title
בלרינה בבקבוק
ניסוי המדגים כיצד שינוי בלחץ משפיע על הציפה של חפץ בתוך בקבוק מים. באמצעות לחיצה על דפנות הבקבוק, אנו משנים את נפח האוויר בתוך הצוללנית, ובכך גורמים לה לשקוע או לעלות בצורה שנראית כמעט כמו קסם. הניסוי ממחיש עקרונות פיזיקליים של חוק ארכימדס ולחיצות של גזים.
Video transcript
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