The Kilogram Isn't What It Used to BeIt's Lighter
Within a high-security, climate-controlled vault in France, the perfect kilogram is getting ever so slightly less massiveand no one knows why.
"If a nation expects to be ignorant and free, in a state of civilization, it expects what never was and never will be." -- Thomas Jefferson
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. - Carl Sagan
I believe that every right implies a responsibility, every opportunity an obligation; every possession, a duty. - John D. Rockefeller, Jr.