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You're supposed to roast the marshmallows over a fire.... not catch them on fire and have them cook themselves! :D

I heard that mass is actually lost during nuclear reactions, and converted into energy. hence E=MC2. So, maybe that has something to do with antimatter and 'antiphotons'.... just a thought. That would be fun. A nuclear reactor in your pocket! It will probably be found to cause cancer though...

Yep, both of those should work :)

The peak is much more powerful, i hear, but the average power per unit time is the same, I believe.

A rad system will only bring the temp down to a few degrees below ambient temp I believe, but if you add a pelt, then you can get sub-zero! But if ambient is 20C lets say, then that's plenty cool!

I'd aim for no more than 240ma's of current (ma), which will give quite a strong beam. Many people (including me) run theirs around that, and it's powerful yet not too overdriven for these diode. To measure current, hook a 1 ohm 1/2 watt resistor up in Series to the LD, and measure current in...

The lathe is probably the #1 metal working machine out there.... Great for almost everything! My school has 10, (6 or which are from 1932, and still running strong!) and they are an extremely handy piece of equipment! I wish I could afford one! Have fun! And remember, don't hit the chuck with...

So not to mention the cost of the TECs, but you just threw away $100 worth of tape! haha!

Does anyone know any CNC stuff here? Because many small CNC milling machine setups use stepper motors to control them, and work from the PC's parallel port, ironically enough. You just find the pinout for the floppy drives, and make a connector out of a parallel port that plugs into the...

We watched that video in school a few years ago.... Very cool! Gives a whole new outlook on where we stand in the universe. Plus, they could still have zoomed out even further than they did, in our 'endless' universe.

That video is actually the reason I found you guys and got interested in lasers! Next time I walk across a $3000 projector I can afford, that's what its goin to!

Re: Starting tonight, 13 Sept - new GB for 16xdiod I'll bet it's over 150. Anyhoo, it doesn't really matter, he ordered 300!

Well, theoretically, but all the dust and stuff in the air will also suck some of the energy away from the beam. To quote: "Fog is a weak laser's best friend".... because it allows you to see the beam, when it reflects off the fog particles. But, the beam is shortened because it's being used up...

Re: Starting tonight, 13 Sept - new GB for 16xdiod I ordered another two. I'm in Canada, I havn't gotten them. Most likely because Senkat hasn't gotten them yet either, at least that I know of ;)

Re: Starting tonight, 13 Sept - new GB for 16xdiod Cool! About this time yesterday we were only at 105, now 137!

Man, that video is crazy.... And he drives it away afterwards! here it is for anyone interested: http://piemob.com/stuff/jumps_house.wmv That's the one you meant, jesse? **Edit** Fixed link {SenKat}

Re: Starting tonight, 13 Sept - new GB for 16xdiod Another two ordered here!

I didn't know so many people were into the RC hobby here! Though, I'm a nitro car guy. I've been looking to get a heli but I don't have the $$ and I don't want to crash the thing.

Daedal, I've gotta thank you for writing out this circuit. I've know some basics in electronics, but still learning. The schematic on the first page really helped me, and now I'm gonna get the parts to build it! Then some LD's from the GB and hopefully I'm ready to light some matches! :)