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 is an important element in the functioning of the human body and is essential for life. It is used in the DNA molecule and is a main ingredient in our bones and teeth. We get phosphorus from foods such as beans, nuts, eggs, fish, milk, and chicken.hosphorus atoms have 15 electrons and 15 protons with 5 valence electrons in the outer shell. Characteristics and Properties. Phosphorus is a highly reactive element and, as a result, is never found on Earth as a free element.