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chadd
6y ago
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With my 16 year old son, I built a weather balloon with one, including an Arduino, a few temperature sensors, a GPS, LoRA radio, and we're going to launch it next month. Having a hard time finding Helium.
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orpheline
6y ago
· 1 in thread
As a further science project, why not liberate hydrogen through electrolysis? Much less expensive than helium, and greater lifting capacity...
chadd
OP
6y ago
good idea! I think we're just going to get a hydrogen tank, some protective gear, and go that route.
sokoloff
6y ago
· 1 in thread
Don't most party stores have helium tanks?
chadd
OP
6y ago
I need 200 cubic liters and they won't sell that much
cmmeur01
6y ago
· 1 in thread
Welding supply store may be worth checking.
chadd
OP
6y ago
Yes they won't sell except to existing customers. New customer == no helium.
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