I’d give laser pointers to Neanderthals. Even if they did figure out some useful application for them (maybe hunting?) they’d run out of batteries eventually.
I’d give laser pointers to Neanderthals. Even if they did figure out some useful application for them (maybe hunting?) they’d run out of batteries eventually.
A solar panel with a light attached.
That one would actually make more sense if you’d never seen either part separately, but I like the spirit.
My thought process was, this produces light only when there is light outside making it effectively useless.