| ▲ | stronglikedan 2 hours ago | |
Ah, a fellow person of SciShow pedigree I presume. https://www.youtube.com/watch?v=FKiSYHf1HyI | ||
| ▲ | silverFork an hour ago | parent [-] | |
wow that is... a great video.. didn't know much about bismuth, lead use and alpha therapy. Thanks for posting it . | ||