Daily Archives: July 27, 2025
If it has to do with space, there’s a decent chance 6 yo Obi knows it already
About a week ago, I went to explain Cherenkov Radiation to Obi. Things to know about that:1. Nothing can travel faster than the speed of light in a vacuum (call that speed C1)2. Light travels more slowly than that when it is passing through other media, eg air, water, glass (call that speed C2)3. When … Continue reading
Categories: personal journal
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