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I didn't know you could get colors by ionizing the air. Is the color determined by the gas in the air or the wavelength of the laser? And why IR?

If you are Benjamin Franklin don't worry about it.

quantum mechanics? Faster than the speed of light? Check out my post in the laser computer thread. It may clear some things up.

This brings another thing to mind, quantum mechanics! What the hell is quantum mechanics and what does it have to do with computing? To be honest I understand just the basics of quantum mechanics so please bear with me. In a nut shell quantum mechanics explains the realations between matter...

Yeah lol they aren't going to have the researchers exposed to x-rays in the lab. Yup I think that is what they said they were using. Ok that makes sense, but I couldn't imagine that much power going into it, maybe THINGS was right it could be around kw. If that were the case then why bother...

Nah its near Dayton Ohio, Wright Patt Air Force Base. The Air force has labs for directed energy laser weapons out west though. Yeah I know x-rays aren't in that wavelength, its the range of wavelengths that the lasers operate in the lab, that way they know which eye protection to use. Yeah, at...

I was at a world class laser lab this week (top in the world). One of the many experiments that was going on was using a femto-second laser aimed at small piece of copper inside a vacume. The energy of the laser would excite the electrons in the copper out of the atom and cause the copper to...

Yeah the reason why I bought to battery holders was because I figured the laptop battery pack will have moe than just 2 batteries. By buying two protected battery holders I dont have to wait for shipping for a battery holder for my next build. I probably wont even need to use a protected battery...

Alright I just bought a pair of protected 18650s a charger for them (wf-139) and two Li-ion battery holders (the one you recomended me) All of this starting to add up in $, but I guess your first build is always the most expensive. So far I've bought: PHR diode pre installed in aixiz housing...

Yeah my original plan was to charge the Li-ion battery with the spare phone I found, which is nice because I can use the same cord that I use to charge my Samsung blackjack. I have a Dell laptop that is about a year old now and Im thinking about tearing the batteries out of it, the battery...

Ok today I was running in a field for cross country when I came across a cell phone. The phone worked perfectly too. I figured the phone most belong to somebody so I snooped through the contacts, messages and recent calls to find out who it belongs. It turns out the owner of the phone must have...

No finding a host is proving to be a problem (my mom gave away all my childhood toys and guns), I think I'll just stick with a project box for now from radio shack or just make one. @ Cheech dude thats hilarious that you put it inside a Shrek happy meal toy. I can actually say LOL (how often...

Alright Im going to look around my house and see if i can dig up some old toys that I could fit a LD, driver and a 9v. Idk if I should use something totaly random or something awsome like a bubble blowing gun. :gun: I ended up buying the galsses from O-like btw I will probably just use the...

Alright guys thanks for the helpful links you have given me, right now Im looking at buying some eye protection. I found a good pair on O-like for a good price they absorb the photons rather than deflect them, idk if this good or not. They are a good price and I was wondering if anyone a cupon...

uber cool man, yeah we use transformers where I work to drive magnetic exciters, which are used to vibrate aircraft parts at a range of frequencies. Some times I can here the transformer tweeting along with the frequency sweeps we do. For example if we do a 2000hz to 3000hz sweep, I can hear the...

Alright I'm listing to you guys, Ive been reading up on everything on heat sinking, Aixiz housing, drivers and battery types. I've scrapped my plans to build a 1w 445nm laser, and I am now looking at pointer with a 405nm PHR-803T out of a Xbox 360 HD drive. It says in this graph...

Awesome thanks man just made the purchase!

Hey guys I'm looking into buying a 3-4 12x30 Aixiz laser diode houses. If anybody has got some hit me through a message to work something out.

Young Engineer Uses Webcam, Laser to Build Budget 3-D Scanner | Gadget Lab | Wired.com The link is to article about a young engineer who developed a cheap 3d laser scanner only using a laser and a web cam and some software. the article doesn't say a whole lot about because I imagine this kid is...

I believe the DOD is probably working on something like this lol. I remember reading about it somewhere. Theoretically it could work, I think the trickiest part would be getting the current to flow down the ionized beam of air without damaging your laser. Getting enough power shouldn't be a...