In article ,
Jim Yanik wrote:

"Kevin Brooks" wrote in
:



The dimensions and weight of the 155mm rounds did not dramatically
change (W-48 from 1963 at 6.5 inches by 33 inches and 118 pounds
versus the W-82 cancelled in 1990, at 34 inches and 95 pounds) over
the decades.


155mm is 6.10 inches,so how could a W-48 be -larger- in diameter(6.5")?
and that includes the bomb casing.



One factor overlooked in all this discussion is that nuclear weapons, in
addition to generating lots of detectable radiation, get HOT! In FBM
tests we installed heaters to simulate the heat generated by a snoutful
of physics packages.

A good terrorist would have to wrap the whole thing in a lead vessel,
adding a lot of weight and then have to try to keep it cool. I know that
DC has radiation detectors spread all over the city; I assume that NYC
and Boston would, also,

It ain't as simple as it seems!