3 ms·
You could power a clock with a radioactive isotope and it could get you 100 years worth of power. With a big enough spring you could also theoretically get a sm
by AngryData 1y ago
You could power a clock with a radioactive isotope and it could get you 100 years worth of power. With a big enough spring you could also theoretically get a small mechanical watch-like clockwork to last that long, however calibrating it to be accurate and not wear too much over such a long time span would be difficult.
- timschmidt 1y agoOr just power or wind the clock externally. If it's [electro]mechanical, losing power or forgetting to wind it will only extend the period of time for which it remains closed. Otherwise it would need an internal backup battery, which, if it's only powering an extremely low power clock and nothing mechanical, could last that long with the right chemistry. Solar cells could also last a hundred years, suitably encased, with some reduction in effectiveness due to ionization.