I've only done back-of-envelope kinds of calculations, and they don't count here.
On February 2nd, 2012. See this statement in context.
On February 2nd, 2012. See this statement in context.
February 2nd, 2012 / 5 p.m.
Prof. Paul Reed
I've only done back-of-envelope kinds of calculations, and they don't count here.
See context to find out what was said next.