Nash equilibrium – I found this one in a Wired article about traffic & congestion, even though the original theory referred to games:
In game theory, the Nash equilibrium (named after John Forbes Nash, who proposed it) is a solution concept of a game involving two or more players, in which each player is assumed to know the equilibrium strategies of the other players, and no player has anything to gain by changing only his or her own strategy (i.e., by changing unilaterally).
The Osborne effect is exhibited when a company’s revelation of information about future products results in customers not purchasing (or delaying purchases of) the current offering. Its origin is a purported suicidal marketing mistake made by the Osborne Computer Corporation in the 1980s when its announcement of a successor to its Osborne 1 system led to a sharp reduction in sales, and the delay of the successor system created a revenue vacuum from which the company did not recover. This statement is a common myth.
This is why Apple keeps it’s mouth shut about product updates. Companies like Nokia should take some notes.
terminal velocity – I was curious what Evelyn McHale’s speed was when she jumped off the Empire State Building and landed on a car. I didn’t know what terminal velocity meant until today (thanks missiletest):
As the object accelerates (usually downwards due to gravity), the drag force acting on the object increases. At a particular speed, the drag force produced will equal the object’s weight (mg). Eventually, it plummets at a constant speed called terminal velocity (also called settling velocity). Terminal velocity varies directly with the ratio of drag to weight. More drag means a lower terminal velocity, while increased weight means a higher terminal velocity.
the only other place I remember hearing about velocity is Monty Python and the Holy Grail: