MARY PREVITEâS SPEECH AT THE SIXTIETH ANNIVERSARY CELEBRATION OF THE LIBERATION OF THE WEIHSIEN CONCENTRATION CAMP. August 17, 2005 Weifang, Shandong Province, China. Honorable Mayor Zhang Xinqi, honorable friends of Weifang, you have earned our deepest gratitude by inviting us here to celebrate this Day of Liberation.
TIL that in 1669, Hennig Brand discovered phosphorus by boiling down urine and heating the residue to very high temperatures. He was trying to make gold though, and he hoped that the yellow color of urine meant there was gold in it. (chemicool.com) submitted 4 years ago by virnovus 8. 89 comments; share; save
Phosphorus, the 15th element on the periodic table, was first distilled by an alchemist searching for gold â searching, that is, in at least 60 buckets of urine.hite phosphorus is waxy and gives off a slight glow in air, according to the Royal Society of Chemistry. It's also capable of self-igniting in air once the temperature reaches about 86 F (30 C); the only safe storage is under water. As a result, white phosphorus is used in fireworks and weaponry.