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Topic: Small power source for one century (Read 6 times) previous topic - next topic

cjdelphi

how about this for idea...

what left for 100 years would create a battery? ...

amundsen

The time capsule is a metal box and it wil contain 100 objects. It will probably be stored in an attic. The circuit to be triggered after 100 years will be an audio circuit (maybe with a surface transducer sticked to the metal of the case).

Therefore I don't see a possibility with solar power.

Maybe it will be easier to use the services of a bailiff.

fungus

Set up a temple around it with a bunch of monks to care for it and organize a suitable ceremony when it opens.
No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

Jack Christensen

No doubt the power source is the stickiest problem here, but I'd also design some redundancy into the electronics. Source all parts based on reliability. That probably puts the flaps down on those cheap capacitors from eBay :smiley-roll:
MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

Jack Christensen

Perhaps some sort of electromagnetic energy harvesting approach?  Assuming an urban setting, the energy available might even increase over time.  And if there is none in 100 years, it's probably because there's no one left to open the time capsule anyway. :smiley-eek:
MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

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