If you really believe that, I've got a bridge I can sell you...
Quote:
Originally Posted by
Fuchs
You're writing about the country that went to war over a crazy idea that non-existing nukes could be given to terrorists who were at odds with the alleged potential nuke owner and could smuggle them past security measures into the U.S.
Not even the Iraqis bought that line. :rolleyes:
Have you read this (LINK)? I don't agree with him on much and I don't agree with his recommendation here but at least he's figured part of it out and doesn't repeat that foolishness you did. That was a palliative for the masses, no more.
Assumptions need to be defined...
Quote:
Originally Posted by
Presley Cannady
If I remember correctly, planners calibrated their slide-rules with somewhere north of 10 psi as the minimum overpressure of widespread destruction. Some power law will describe dissipation of overpressure as distance from point of detonation grows. Just remember, >10 psi will rip apart a human body and blow away reinforced concrete buildings. >1000 psi will fracture cast iron and >5000 psi will fracture steel.
Overpressure (rocket or mortar) is no fun. Nukes are something beyond...
Gauge pressure or absolute pressure? 1 atm = 760 mm Hg = 14.7 psi, Dynamic pressure?
Lets think about steel metrics for a moment; what type, what condition, what thickness, what shape, what temp, how long has it been irradiated, and what was the dose?
A36 Structural Carbon Steel, anticipated tensile strength 400-550 ksi (k=kip=1,000 lbs)
A514 High-Yield strength Quenched & Tempered Alloy Steel, anticipated tensile strength 690-895 ksi
The Charpy V Notch Test (ASTM E23) is a reproducible way to characterize the amount of energy needed to fracture a material...the result is typically reported in ft-lbs.
Cast iron is more likely to shatter than steel, particularly in the instances discussed, but keep in mind that it is stronger than steel in certain instances and applications...
A study on pilots and overpressure
I know I seem a bit picky but...
anti semitism does not equal criticism towards Israel. Anti semitism is rascism, and hatred while a critique (put politely, with argumentation etc.) is a critique.
Edit this is OT here.