In summary, the conversation discusses the phenomenon of burning paper with a magnifying glass and sun. It is explained that light, being an electromagnetic wave, carries energy which can be focused onto a small area using a magnifying glass. This concentrated light provides enough energy to raise the temperature of the paper and cause a chemical reaction, resulting in burning. The process of combustion is also discussed, with the release of energy in the form of light and heat. The concept of activation energy is also mentioned, which is the energy required for a chemical reaction to occur. It is also mentioned that using a magnet would not have the same effect, as simply moving the magnet over paper would not provide the necessary energy for combustion.
#36
rena g
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is a magnifying glass and the sun a form of clear heat?