Recent content by oic0

I must stop making fun of laser beam eyes on super heroes. BBC News - Laser is produced by a living cell

What lens do they use? is it an aixiz? they are cheap and easy to replace.

Brightness does not relate to damage. An invisible or barely visible laser will happily toast your retina.

Down here in the often humid Louisiana, I can see a 20mw 405nm at night :D No fog or anything and some ambient light. It looks like a grey streak.

If you have glasses, try taking them off. A lot of glasses get a UV filter coating on them. It can obstruct your view of a 405 laser. 405 is pretty dim though, its at the far edge of what our eyes easily perceive.

Going to run in to a small issue with the glass being... well... reflective. Going to need some better than cheapy glasses to protect from that and going to need to be in a room with no chance of people during the procedure. Basically you are going to spend about 200+ to burn a string. You could...

Ive never noticed it around mine but I never use it without goggles so maybe I miss it?

Sacrilegious I know, but I dont eve know the exact MW of my build. :whistle: That one makes people around here fume lol. Anyhow, compared to my Arctic. You can only tell the difference in the right environment. In dark night with your eyes adjusted against a black sky, the home built is...

In the US you are going to get sued for blinding him. You can go ahead and blind them though and then bash his skull with a lead pipe, make sure he's good and dead, then youll get off scott free. :horse:

I wonder if it would be possible to do something like focus the beam out to a VERY specific width at its widest point and then use an IR thermometer to measure how many degrees above room temperature it is able to heat said object. Perhaps a quarter sharpied black? If you are wanting to go by...

Luckily we dont have those centipedes or huntsman spiders here. We do have these though. YouTube - Female Wolf Spider With Babies On Her Back . Wolf spiders are wicked fast and can walk on water. Little jesus spiders. I remember walking out in to a flooded area to help my friend pull his quad...

Playing the same game, I have an old air cooled RD350 (two stroke street bike). Ported, 34mm carbs, bigger reeds from a banshee, some custom pipes, increased compression, light weight total loss ignition system, welded crank, etc... (blew it up, have the parts to fix it, just haven't) :D fun lil...

Welding is a LOT brighter. If somone is welding in broad daylight that sucker will still make you see spots from 20 or 30 ft away. A powerful arc welder is a major light producer. A 445 can be hard to find in daylight at 20 or 30 ft away. Yes the dot is there and visible but it doesn't look...

I meant a 445 with a line generator ;) Could spread out the deadly area while still having it focused.

I wonder about a line generator like that 1000w yag cleaning laser.