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Haha ok I guess that is true! :D :thanks:

Arglaser, I hope you don't mind me asking in your thread, I was wondering recently how much of a factor humidity is in degradation of diodes. For a while I had thought the lower the humidity the better and have my lasers stored in a container with jars full of rice to absorb moisture. However...

The dimensions are in post #6 of this thread where there is a list of the specifications and picture of the module. Hopefully it will fit! :wave: http://laserpointerforums.com/f40/lasever-473nm-handheld-module-any-hosts-might-fit-75080.html

Thanks Blord, that's good to know I can always use those if they do not make contact. Actually I was just thinking though, aren't the batteries cases made from aluminum and would this not be able to attract the magnet?

Hi, I was looking at getting some of these AW 2900mah 18650 batteries and was wondering if I would have any problem with the lack of the "bump" on the positive terminal. The 2600mah version does have the normal raised bump on the + terminal but unfortunately the local store where I get my Li...

Just one more reason to want to visit Australia, that sounds like a really fun trek with the 4wd. I've really wanted to go to Australia lately, I'm a fan of all the nature including the Eucalyptus trees and all the different (to me :) ) interesting plants and animals etc. How often do you...

You guys get to set off 12" shells in the outdoors when you go camping and its not even part of a fireworks display? It must be really far away from cities out in the wilderness or outback? I would think you would really feel a 12" shell from underneath! I worked for a fireworks company when I...

It might work, but the oxidizer in sparklers could be KCLO3, KCLO4, or even Barium Nitrate which is really poisonous and water soluble. The other trick is getting the composition to reliably stick to the string. Some compositions require a minimum amount to burn reliably so may not work as well...

Another problem could be that the oxidizer in the matches is not water soluble enough and therefore not enough of it is penetrating into the string, nor is there a thick enough layer of the match composition coating on the external part of the string to continually sustain the burning and or...

I was thinking the same thing. Were the matches ground up and attached to a string, or were match heads just attached inside a tube to make a fuse? If they were ground up and put in water, the oxidizer (probably KCLO3) might have been removed to the point of being in to low a ratio to provide...

Cool, I hope it works! :) You could even try just using KNO3 dissolved in water into the cotton string by itself and it might even work. It will burn a LOT slower as the only fuel will be the cotton string rather than any added charcoal + S or sugar, but it should keep burning regardless...

How small is the hole into the cannon? It sounds like there is a lack of oxygen that is making the fuses go out when the fire reaches the hole in the cannon. If you can get some Potassium Nitrate (oxidizer) and some cotton string you can make some fuses that won't go out when the burning part...

That was very nice of you to watch it Wolfman, thanks! :beer: I obviously lack the knowledge in Physics to know that it was bs, but it sure sounded interesting to me though with rotating magnetic fields causing increased gravity for Anti Gravity propulsion. :D Now I am kind of embarrassed, I...

Not sure if this is related but isn't the Bose Einstein condensate the mechanism that drives the anti gravity generators in the rotating superconductors in the UFO's? :p I don't have a physics background but this is really interesting. Wolfman29, I would be curious to know what you think of the...

Cool event there. :D Does anyone know the song in the third video in the opening post? It is so familiar but I can't put my finger on it. It might be in my mp3's somewhere but I doubt I will be able to find it because I can't remember the name... :( Edit: Nevermind I found it, it's Doctor P...

Yeah, the low power mode (18650) is great for me because I can shine it within my smaller backyard without it being too bright whereas the full power mode is a but too much for the space. ;) Thanks very much Danefex, that means a lot :) I'm glad you were able to check it out and thanks for...

Grainde and Benm, Thanks very much for the time you took to explain all of that, it was very interesting to read and really helped my understanding. :) I am always amazed at the minds here on LPF, there are so many knowledgeable people here. I think if everyone here got together and formed and...

I see you have constructed a new light saber.....Your skills are complete.... Indeed you are powerful as the Emperor has foreseen! The owner of this piece will truly be a lucky one indeed! :p :beer:

That is very interesting and some useful insight, thanks Grainde. So part of the lack of visibility of the color through orange goggles in shorter wavelengths like 445nm is due to the fluorescence created which overpowers some of the blue that could be visible? The only wavelengths I look at...

Wow that looks incredible! The blue lumia effect on the bottom picture reminds me almost of a 3d mesh of a blue ice cube! :cool: