Monday, July 07, 2014
more on spheres 2...
This video is about making a sphere of solid silicone as a means of establishing the exact weight of a kilogram. Blame Lavoisier. Here in the US, we are stuck with units of measurement, different from most of the rest of the world. It gives us a great excuse to learn fractions.
The Parisian rabble cut off Lavoisier's head during the French revolution. He had been a tax collector as well as the father of modern chemistry, but portions of his laboratory have been preserved in the Museum of Arts and Industries in Paris.