Question

When you sit by a campfire, how does its hot air heat you ?​

Answer 1

Answer:

The thermal radiation from the fire spreads out in all directions and is able to reach you. This thermal radiation is mostly in the form of infrared waves and visible light. In contrast, the campfire heat transferred via convection shoots straight up into the sky and never reaches you (i.e. hot air billows upwards).

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Answer 2

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When we sit by a campfire, its hot air heat us via convection currents formed around it.

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