Comment on How exactly are people lighting Teslas on fire?
My_IFAKs___gone@lemmy.world 3 weeks agoIf it were a sunny day and I wanted to conduct an innocuous experiment with my own property, on my own property, and it were legal to do so in my municipality, I’d place a magnifying glass, via powerful magnet and flexible arm, such that it concentrated sunlight on the tire’s sidewall. Then I’d sit back and watch until I either got bored or had to put out any resulting flames with an NFPA-approved extinguisher and/or garden hose. Then I’d record the results in a logbook and drink a beer.
Rocketpoweredgorilla@lemmy.ca 3 weeks ago
Fresnel 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.
www.youtube.com/watch?v=kbrXUBU_gkM
My_IFAKs___gone@lemmy.world 3 weeks 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.