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The thing is b5s402. When you say the doctor uses a laser to fix your retina, you have to consider the precision of the tool he is using. You have no idea of the exposure he is giving you. Nor do I for that matter but I bet it is focused with precision, it is securely fixed and not allowed to...

More importantly, check out the safety glasses that dude has! Where do I get a set of those?

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Anyway, I know I helped diverge this thread but it's probably a good time to stop before it gets deleted. Netscott you have me wondering now whether that experiment could be used to demonstrate the theory behind a hot air balloon? Not sure if the theory is altered in any way by having the...

Hydrogen filled balloon is fun. Let me suggest NOT to try oxy acetylene mixture from a welding kit. It doesn't end well for ear drums :whistle:

I would assume it is a Jayrob kit, but I did not build it so cannot be 100% sure.

"Wow -- the troubles of you folks down under make me glad I'm in the old US-of-A where we are free too... import... anything... oh well -- never mind. </sarc>" Hahahaha, that line would be even funnier if you could say it with a Cuban cigar sticking out the corner of your mouth....oh...

Here is a look at my >1.1W 18650 Host 445nm 405-G-1 glass lens Copper heat sink EzFocus adapter Built for me by bobhaha Tritium marker I attached to the strap And finally some beam shots Thanks bobhaha for a very tidy build!! I'm a bit particular about presentation...

Re: Video: Laser Projection Microscope - Seriously Cool! Yeah the cat is hilarious! I reckon next, someone needs to hit that drop of water with a "SteriPen" which is something like 254nm wavelength and then switch back on the laser to see if those microbes are still as energetically motoring...

Re: Video: Laser Projection Microscope - Seriously Cool! Yeah I stumbled across another one of these on the web and it is quite amazing: Teravolt.org - Laser Microscope

Re: Took 630mw reflected to the eye. Always be careful around mirrors. FarewellToKings, despite the pages of advice you are likely to cop for posting your experience, thanks for sharing. Should I ever have an accident I think it would help in the very early stages to know of the outcomes of...

You would have had the laser on a tripod or something though? The exposure looks to be about 3 seconds from the traffic. SO the laser must have been super still. Good work.

DJNY, is that photo one of yours? If so do you have some notes somewhere on how you took this, what laser etc.? That is an awesome shot.

I'd be tempted to treat the goggles like a bullet proof vest. Wear it for protection but I wouldn't get my mate to give me a direct hit just to see if it works.

0.1uF = 100nF

Interesting point though. How efficient is a mirror at reflecting the light (ie. if you bounced an extremely powerful laser off the mirror would it just bounce off forever or would it eventually burn the silver oxide off the back of the mirror and then pass through behind the mirror?).

And assuming a somewhat similar inefficiency the black laser may need to be heated to stop it from freezing too far below operating temperature. Maybe you could bolt the laser heatsink to the black laser heatsink and then it would maintain them both at ambient. Or in the ideal world if they...

hahaha I like this thread. My question would be: Would the black (hole) laser have a minus power rating, so that if you point a -500mW black (hole) laser at a 500mW laser, it would suck up all of the light from the other laser and maybe even charge the batteries!