 |
 |
 |
 |
 |
|
| sport, medicine articles, healthcare news, big fatties , bbw escort , cdu4mkey, john considine, bbw porn , aixialtd, eglin air force base, | It bbw galleries is theoretically possible to build a plutonium gun-type device, but it would need to be 19 feet long in order to allow the sub-critical masses to be fused into a critical mass before a fizzle occurs. The mass of a plutonium gun-type device would have been beyond the payload of the B-29. After bbw galleries this problem was realized in 1943, work began in earnest on the implosion bomb, bbw galleries the "Fat Man". The gun-type method could still be used for highly-enriched uranium, though, and was employed in the "Little Boy" weapon which was used against Hiroshima, Japan. For a variety of reasons, the implosion method is both more efficient than the gun-type method, and also far safer, as a perfect synchronization of the explosion lenses is required for the core to properly detonate, greatly reducing the chances of an accidental nuclear detonation. |
Best Fat Paysites
|
| However it was discovered bbw porn that plutonium created for the bbw porn bomb in the nuclear reactors at Hanford, Washington, even though it was super-grade weapon plutonium containing only about 0.9% Pu-240, was not as pure as the initial samples of plutonium developed at the cyclotrons at Ernest O. Lawrence's Radiation Laboratory in Berkeley, California. Because of the presence of the isotope Pu-240, reactor-bred plutonium had a much higher rate of spontaneous neutron emission than was previously thought, and if a gun-type device was used it would most likely bbw porn pre-detonate and result in a messy and costly "fizzle". The spontaneous fission rate of Pu-240 is 415,000 fissions/(s·kg), and the amount was 0.9% of 6.2 kg, is 56 g. Thus there were 23,000 spontaneous fissions per second. This means that the last few centimeters would have to be travelled in preferably much less than 40 microseconds. |
|
Looking for real sex? Find someone now on the
largest sex personals network.FREE signup! Post a FREE erotic ad w/5 photos, flirt in chatrooms, view explicit live Webcams, meet for REAL sex! 30,000 new photos every day! Find SEX now 
|
