2 ms·
A small flashlight can (and has been) done, see e.g. https://hackaday.io/project/158857-body-heat-powered-flashlight https://hackaday.io/project/158857-body-hea
by skosch 7y ago
A small flashlight can (and has been) done, see e.g. https://hackaday.io/project/158857-body-heat-powered-flashlight https://hackaday.io/project/158857-body-heat-powered-flashli...