Is it true that a pinhead of the Suns core would kill someone100 miles away?
I think that’s correct. If the head of a pin has a radius of one millimeter, then the ratio of 100 miles distance to that radius is 161 million. The temperature of the sun’s core is about 15 million degrees. The temperature varies inversely as the square root of the distance. So at a distance of 100 miles the temperature would still be 1182 K. And most of the radiation would be gamma rays, so yes I think it would be fatal. Hm, on second thought, that temperature would not be sustained for long. The pinhead of suncore stuff would disperse pretty fast, and the temperature and pressure would drop below the nuclear reaction threshold. There would be a pulse of heat. I don’t know if it would last long enough to fry a whole lot.
