I got this idea from recent news stories about messages in bottles being found on the shores of various places in the world after many years at sea. I combine that concept with something I and a friend did as kids - we filled party balloons with homemade H2 with an attached, pre-addressed questionna…

ATtiny in a bottle

system October 26, 2012, 3:33pm 6

I have a satellite modem that could send the location from a bigger bottle. Not so expensive!

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