Forums >
Off-Topic Discussion >
Simple Math
A Thousand Words wrote: True. Plus, the space race began with those engineer's slide rule things and were used on the Apollo missions by the astronauts as the Pickett & Eckels slide rules (1944) were lightweight magnesium and aluminum models and were really expensive too. Jun 27 17 07:17 am Link Nor-Cal Photography wrote: They were okay for some applications but woefully imprecise in others. For example, they are okay in estimating the square footage of a room, but I wouldn't trust it to calculate the orbit & trajectory of an attempt to land on Mars. Jun 27 17 08:54 am Link |