H2SO4

you must make sure that the heat of the reaction dosnt exceed the boiling point of Mn. If it does, it will explode sending molten globs of Mn everywhere.

Were talking about the 5mw green laser pointers.

you can maybe try to excite some phospourus so it glows. I dont know if this can be done with UV though.

Thank god we have the internet. The internet is where, along with books (but mostly internet), i get all my knowledge of science and other things (like pyrotechnics). I havent been here long but i have already learned alot also.

We just get them tooken away like cell phones. Our parents have to come pic them up afterschool. In elementry they were treated like weapons though..

You can bet its 680nm

the potential for an element to react with other substances?

ya, i got my red one along time ago so i wasnt wise enough to save the packaging so i dont know if its a 630 or 650. I think its a 630 though becasue it was realy bright. I tried cleaning the lense last night and somehow broke it and i took it apart and screwed up the laser diode whie trying to fix it so now i dont have a good red one.

I haven't recieved mine yet but i bought mine on ebay. If you are going to buy one on ebay i highly recommend this seller, abeland1 He also ships internationaly. As far as the beam goes for being visible in the dark, ive seen photoes where there a solid beam, like a light saber. This is done by increasing the exposure time of the film. From what i believe its a faint beam. I believe this becasue people do use them for mounting them on there telescopes for alighning them to certain areas in space. SO the beam cant be to faint if you can use it for these purposes. I should get mine probaly wednesday (for some reason i cant spell wednesday, ior did i just spell it right?) so ill post it here. To bad i don't have a digital camera.

What is the difference between a Pile Lithium battery (non-rechargable, expensive and nice batterys you buy at the store) and a rechargable Lithium-ion battery such as the ones used in new advanced products liek cell phones? Do they both contain elemental Lithium in them. I know the non-rechargable ones have Li foil in them.

Ok, thanks swansoft, i was just making sure.

yes, acetylene acts like H2 in oxygen.

is the hoffman device the thing with two columnn, each with platinum electrodes, and a bridge in between them. The whole thing is made of glass.

Does anyone know if those disposable lithium battery's you buy at the store would work for a green laser such as mine? I want to get the Lithium battery's becasue i hate replacing the battery's in my red o laser because it eats them up so fast. I dpnt want to get this laser and put Li cells in it and cause the diode to overheat and sacrifice the life or something.

i dont see why you cant put a projectile in one. reaLY SCARY thoUGH.

I did some research and i found that these lasers are possible found on some FDA website or something. But i think i saw something that said the handheld lasers are restricted to 5mw in the US. All i can say is i cant wait to get my 532nm. By internet research ive found that there pretty powerful for a laser pointer. Here's a cool link about the dissection of a green laser pointer. Theres also a gallery of pics. http://repairfaq.ece.drexel.edu/sam/laserpic/glpdpics.htm

Why wouldnt all laser pointers be 95mw if it posssible? It doenst make sense.

but i believe the limit on handheld laser in america is around 5mw. I still dont believe it. All the others ive seen are at 5mw, including the one i just bought. And, from the looks of their site, i would never buy from them. I mean come on, wicked lasers.com".

Id imagine this would be physicaly impossible to have a handheld laser running on two tripple A's produce 95mw

I mean their nexus is a 95mw laser that runs on two AAA's. tHIS IS lame lies.

ok, so i knew this site was crap from along time ago, but now theve gone to far. This is ridiculous! http://wickedlasers.com/ They show there "95mw" lighting a match. This site is such crap!

put two graphite electrodes in a beaker of water and pass an electric current through.

lol. Do you by chance have the video or a link to the Ceasium plus H2O +fiberglass bathtub explosion?

so the theory is that quarks are made of leptons?