Why do hot objects glow?
From MinutePhysics.
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Full video: https://www.youtube.com/watch?v=1pfqIcSydgE
A process called "blackbody radiation" makes all objects glow with light of a color depending on their temperature.
The reason that you don't see your friends glowing, though, is because we're too cool to glow with visible light - we glow in infrared.
But lava, a hot piece of iron, or soot in a flame are all hot enough to glow with that familiar red-orange light.
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
A process called "blackbody radiation" makes all objects glow with light of a color depending on their temperature.
The reason that you don't see your friends glowing, though, is because we're too cool to glow with visible light - we glow in infrared.
But lava, a hot piece of iron, or soot in a flame are all hot enough to glow with that familiar red-orange light.
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
