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.
Pretty sure the greeks knew about the hindu number system, they were neighbours for centuries. They just thought zero was of the devil and geometry was better that algebra and never adopted it.