News for hackers. Stuff that matters.

A comment on Ask HN: Best way to host a website for 500 years?. Parent comment

Re:Ask HN: Best way to host a website for 500 years? by cesarb on Friday October 22, 2021 @08:16PM (#28964418)
> ground on the outside

A diode bridge (https://en.wikipedia.org/wiki/Diode_bridge) can easily take care of polarity inversions. Voltage is a harder problem.

Since we're going through flights of fancy in these threads, another option would be to add a built-in solar panel to your hypothetical e-reader. Expose it to enough light (and you can probably assume the lighting won't be much brighter than a tropical midday sun) and it turns on.

[ Parent | on HN ]
Re:Ask HN: Best way to host a website for 500 years? by marcosdumay on Friday October 22, 2021 @09:59PM (#28964965)
Yes, but then you would both incentive people into placing your device under sunlight and need some of the shortlived kind of capacitors.

It should still be possible to make a solar powered e-reader long-lived, but a replaceable power supply is a good idea even if your device has to last for a couple of years.

[ Parent | on HN ]