vincent stuchly
Before we send geiger counter to stratosphere lets find out if it doens't have any problem working with low pressures. In the video I am using very small GM tube SMB-10 so that is why it cant be seen. I puted it inside a ordinary vacuum chamber, which you can find in any high school. Then I lowered the pressure as much as I could.
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Geiger counter for statosphere
Let's send geiger counter to the stratosphere!
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Mukesh Sankhla
8bit-bunny
Armin Jahr
Simon Liu
That's interesting - I never thought about the risks of sending a vacuum tube into a low-pressure environment. My guess is that in a true vacuum, the tube would become pressurized relative to the outside environment, but the gasses within would still be rarefied enough so that the tube would work. Then again, how tubes actually work has always been a bit of a mystery to me. IIRC, plenty of early satellites went up with vacuum tube electronics, so maybe this is a non-issue.
And, I really dig high-altitude ballooning!