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How to start a fire with an Ikea bowl
Description
Discover how to transform a simple metal bowl and tap water into a device that concentrates the sun’s rays into a single, intensely hot focal point. The experiment demonstrates the physical principles of light concentration and reflection from concave shapes, showing how the sun's power can ignite a fire much like a glass magnifying lens.
Original title
איך להבעיר אש עם קערת איקאה
גלו כיצד להפוך קערת מתכת פשוטה ומי ברז למכשיר המרכז את קרני השמש לנקודה אחת חמה במיוחד. הניסוי מדגים את העקרונות הפיזיקליים של החזרה מריכוז אור והשתקפות מצורות קעורות, ומראה כיצד עוצמת השמש יכולה להצית אש בדומה לעדשת זכוכית.
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