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- Thu Mar 17, 2016 6:17 am UTC
- Forum: Science
- Topic: Can you (passively) heat an object hotter than your source?
- Replies: 98
- Views: 26590
Sorry to necro, but there was no good final answer on this, so I'll provide one. If you are able to focus the light well enough, you can make the object hotter than the sun, frequency of the light isn't a restriction; an infrared laser can make something glow much more than red-hot, and easily cut t...