Comment on How exactly are people lighting Teslas on fire?
Rocketpoweredgorilla@lemmy.ca 2 days agoFresnel lenses (like the kind you can tear out of old projection tv’s) work great for that, but they’re kind of a pain and bulky, and very impractical. I have one I took out of an old 55" projection tv. I think charcoal firestarters by a tire works better and can be “deployed” in seconds, but concentrated light is still pretty cool.
My_IFAKs___gone@lemmy.world 2 days ago
That’s awesome! I’ve tried looking for this giant lenses in the past, but never encountered any on the side of the road, unfortunately. Projection TVs are a treasure trove of awesome optical components.
This makes me wonder how well a 1W 980nm Infrared Laser would work for burning/igniting a rubber surface.