“You know," said Arthur, "it's at times like this, when I'm trapped in a Vogon airlock with a man from Betelgeuse, and about to die of asphyxiation in deep space that I really wish I'd listened to what my mother told me when I was young."
"Why, what did she tell you?"
"I don't know, I didn't listen.”
From The Hitchhiker's Guide to the Galaxy, Douglas Adams, Author (1952-2001)
Wednesday, 26 August 2015
Avogadro and the kilogram
A kilogram defined in terms of fundamental constant instead of a physical mass will expand international access to precise measurements.