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How to burn a candle underwater
Description
A simple and surprising experiment demonstrates how a candle can be made to keep burning even when surrounded by water, thanks to the cooling properties of freezing wax. As the body of the candle is consumed, a thin shell forms around the flame. This shell acts as a barrier, isolating the flame from the liquid and allowing the wick to remain dry and continue its combustion process.
Original title
איך גורמים לנר לבעור מתחת למים?
ניסוי פשוט ומפתיע מדגים כיצד ניתן לגרום לנר להמשיך לבעור גם כאשר הוא מוקף במים בזכות השעווה הקופאת. ככל שגוף הנר נאכל, נוצרת סביב הלהבה מעטפת דקיקה המבודדת אותה מהנוזל ומאפשרת לפתיל להישאר יבש ולהמשיך בתהליך הבעירה.
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