Ask ScienceEnglish • 11 months ago

Help me understand this effect

186

Help me understand this effect

Ask ScienceEnglish • 11 months ago

This is an abrasive disk, rotating at 1500 rpm. When I shine my flashlight at it, it carries the glow with it, approximately halfway around the disk. What am I seeing happen here?

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AwkwardLookMonkeyPuppet
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English
2•1 month ago
It sounds like you got the answer to your question, so I need to ask, what the heck weird kind of flashlight is that?
- @WogiOP
  link
  English
  3•1 month ago
  It’s a cheap LED pen light, they hand them out like candy where I work. Most of us have our own flashlights anymore.

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