The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
“The kind of doctor I want is one who when he's not examining me is home studying medicine.”
“I heard Nirvana, and discovered that songs could be like poetry, but a little bit more refined: you didn't have to have 20 verses to get your point across.”