BrainEater's latest activity
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BBrainEater replied to the thread Supersonic ping pong ball.Here's a ping pong paddle hit with a 750 MPH ping pong ball : That dimple is 1/8 inch deep. Here's the back : -------- When we...
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BBrainEater replied to the thread Supersonic ping pong ball.The current world record for this is 976 M/s or Mach 2.8 I've designed this cannon for 100 PSi/100 C helium. Using that gas, the math...
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BHappy Friday everyone ! I know some of you know what I'm up to. I want to make a ping pong ball go so fast it melts when it hits air...
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BBrainEater replied to the thread Scientific American/Amateur Scientist Laser book..Wow !! Very cool ! ------ I was just curious. I have a friend in the local university glass blowing dept. , so no worries. ;) ---...
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BBrainEater replied to the thread Scientific American/Amateur Scientist Laser book..Thanks !! I'll dig into that. ----- Re: the argon laser.....Did you actually glassblow the globe fittings on that !!? - I miss that...
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BBrainEater reacted to Anthony P's post in the thread Scientific American/Amateur Scientist Laser book. with
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I have built the Sci Am argon, dye, and N2. If you search Sam's Laser FAQ there you will find my report: Anthony's Argon. If you do some... -
BBrainEater replied to the thread Optical window assemblies.Here's the popper. The 3/8" tube assembly with the cylinder goes inside the tank via the 'tee' assembly at the back, it's...
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BI've seen a sig or two here with mention of this book. I'd love to hear stories about projects from this book......I made more than a...
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BBrainEater replied to the thread Optical window assemblies.That would totally work, I considered it. You lose the cool factor of the laser trigger though. ----- Ultimately, it boiled down to...
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BBrainEater replied to the thread Optical window assemblies.Yep ! The world record holder, to my knowledge, was just using a thin wire and a neon sign transformer to 'arc-melt' the mylar. -------...
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BBrainEater replied to the thread Optical window assemblies.Nice ! We are on the same page, I was thinking a modified 'swagelok' fitting with a plastic ferrule.... ----- As much as I'd like the...
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BBrainEater replied to the thread Optical window assemblies.I know you are asking why. I need to burst/trigger "diaphragm 1".
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BI am working on a project where I need to 'pop' a mylar burst disk inside a pressure tank. One of the methods I came up with to do...
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BI am really happy to have found this site !! After reading some 'welcome' threads, and a couple random laser threads you have already...
