Thursday, December 26, 2013
No, the Engineer does not see the glass as being twice as big as it needs to be. The Manager might think that way, but the Engineer knows better.
As a for instance, the Brooklyn Bridge has a safety factor of over 3.5. And that's true even though a subcontractor delivered a load of inferior steel cable, because the engineer had designed it with a safety factor of 6.
It's why the nuclear plant in Onagawa, Japan, came through the March 2011 earthquake and tsunami with a flooded basement and an efficient shutdown even though it was 68 miles closer to the epicenter.
Engineers LOVE safety factors.