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Comment by Zak

6 hours ago

> flashlights so powerful they'll fry an egg by shining at them

Flashlights that can do this exist. I don't know if they're being advertised on Meta platforms.

The ones advertised on Meta platforms (and others like YouTube), at least the ones I've seen, claim to do so in a device that looks like it can't have more than a tiny battery and no cooling in there, or that they actualy show using standard AA batteries, or recharging inside an hour by solar energy, or other claim that thumbs its nose to the lawsof physics. But they must be real, after all that nice man left NASA to work on it and now the nasty commercial interests are trying to shut him down! I must buy one now while I still can!

  • The brand name that comes to mind is the Wicked Lasers Flashtorch, which uses a 65W halogen bulb that emits most of its energy as infrared, and a ~30 Watt-hour Li-ion battery. The old-fashioned light source is better suited to party tricks than illumination.

    More modern, and also capable of improvised cooking are handheld searchlights from Acebeam and Imalent with many large LEDs, cooling fans, and even bigger Li-ion batteries. There are third-party videos of these and the older halogen type cooking eggs and setting fire to paper on Youtube.

    What you're describing from the ads obviously violates the laws of physics. An alkaline AA would have a hard time cooking an egg on a dead short.