Know your nukes -- Just how big is a city-killer nowadays?

[Tesha]

In another thread, someone was wondering about Iran buying
250 warheads from Ukraine; I got the impression that they
thought it would be hard to move them.

Here's an interesting chart from Wikipedia
(http://en.wikipedia.org/wiki/Nuclear_weapon_design):



As you can see, a 475 kiloton warhead (about 40 times the
yield of the device that destroyed Hirsohima) is now small
enough to fit in a largish car trunk or any station wagon
or SUV.

One of the more interesting devices is our own "Davy Crocket"
(http://en.wikipedia.org/wiki/Davy_Crockett_%28nuclear_device%29):



This is a sub-kiloton device, so the blast will only destroy
a few city blocks, but my, isn't it portable? A guy on a motor
scooter could deliver this one!

Well, "better living through science", isn't that what they
say?

Tesha