The early history of chemistry has many interesting stories. Just consider the problems scientists had 200 years ago as they tried to figure out some of the most basic ideas of chemistry. It was clear ...

NO one can compare the knowledge we possess to-day of the conditions and general laws of chemical change with the state of our knowledge ten years ago, without being much impressed by the enormous ...

An ongoing international effort to redefine the kilogram by 2018 has been helped by recent efforts from a team researchers from Italy, Japan and Germany to correlate two of the most precise ...