Mix up a batch of 50/50 water and glue, dissolve a spoonful of Borax in more water, then mix the whole mess together. (If you want real numbers, mix 1/4 c water with 1/4 glue & dissolve 1 tsp Borax in 1/8 c water, but really, you can be pretty slapdash about this.) As you knead it, the slime will quickly start…
Carl Sagan was an American cosmologist, astronomer, and absolute tireless champion of the sciences in the public sphere. He was the author, co-editor, or editor of almost two dozen science books, and the host the award-winning 1980 television series Cosmos. Sagan was well known for his excitement in talking about…