19:3219:32, 13 March 2010diffhist+17
Hubbert curve
seems you don't understand this concept. this curve is the derivative of the logistic function... it's simple math
15:2015:20, 26 October 2009diffhist−212
Peak oil
no mention of peak oil at that source, no article at that link, no other articles in that categoryTag: references removed
20:0520:05, 1 October 2009diffhist−8
Peak oil
historians believe history happened in the past ((when?)) -- pretty sure it depends on which historian you're talking to, but past is an easy enough concept to understand