Q-Now that I have been diagnosed as having hypertension, I have been told to cut down on salt in my diet. I told my doctor that I don`t add salt to my foods, but he says there are ”hidden&#82… ...

HELIUM COMPOUND Scientists created a chemical compound of helium and sodium by squeezing the elements to extremely high pressures. Helium atoms (green cubes) are arranged in a 3-D checkerboard ...

This article was originally published with the title “ The Distribution of Sodium in Nature and the Value of its Compounds as Manure ” in Scientific American Magazine Vol. 18 No. 14 (April ...