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- Wed Sep 06, 2023 9:02 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: HESS Telescopes Explore the Sky... (2023 Sep 06)
- Replies: 19
- Views: 9529
Re: APOD: HESS Telescopes Explore the Sky... (2023 Sep 06)
I coughed when I read this: They are designed to detect strange flickers of blue light -- Cherenkov radiation --emitted when charged particles move slightly faster than the speed of light in air. Blue light, how nice... but - charged particles moving slightly faster than the speed of light ??? What...