 鲜花( 1)  鸡蛋( 0)
|
Nuclear weapons:% U, A% Y- j6 L( M! Y7 @& \
http://nuclearweaponarchive.org/Nwfaq/Nfaq0.html" R$ W: T+ h$ Y( g4 T& e0 F; p
# p; o. p1 Y4 s% |
Weapons of Mass Destruction. (2003). In Harvey Kushner (Ed.), Encyclopedia of Terrorism, Vol. 1. (404-406). Thousand Oaks: Sage Reference. Retrieved October 22, 2008, from Gale Virtual Reference Library via Gale: 2 Q9 j& S) v" {8 J9 w
<http://find.galegroup.com/gvrl/i ... 925&version=1.0>6 p- F" F/ g$ j; J
2 C1 s) @' ]0 g8 K; p7 \, m
3 e/ b. K- B3 |9 YNuclear Weapons. (2006). Encyclopedia of Modern Europe: Europe Since 1914: Encyclopedia of the Age of War and Reconstruction, Vol. 4. (1891-1898). Retrieved October 22, 2008, from Gale Virtual Reference Library via Gale:
9 v% G- X3 S; p$ L u) ]3 b<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
6 ^8 w0 z* [; ]) p: s) g8 Q2 y8 f. n& g: X8 P
6 n# l+ G- l% @Clark, Roger. (2005). Nuclear Weapons. In Dinah Shelton (Ed.), Encyclopedia of Genocide and Crimes Against Humanity, Vol. 2. (754-761). Detroit: Macmillan Reference USA. Retrieved October 22, 2008, from Gale Virtual Reference Library via Gale:
" Q) M/ Z' o, \/ N5 f<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
' |# S' z, t' T. c7 D
) H4 u! u/ u4 w: M$ x# ?+ Q3 C 9 |& c4 ^4 Y" z7 m' Z. u1 ]
U' P: t8 _+ s% nLerner, K. Lee, Gilman, Larry, & Haycock, Dean Allen. (2004). Nuclear Weapons. In K. Lee Lerner & Brenda Lerner (Eds.), Gale Encyclopedia of Science, Vol. 4. (3rd ed., 2816-2821). Detroit: Gale. Retrieved October 22, 2008, from Gale Virtual Reference Library via Gale:
$ K5 K f# O4 m x, A1 U<http://find.galegroup.com/gvrl/i ... 925&version=1.0>+ D7 O7 p/ }$ H Y2 K9 v. Y
7 r+ ?8 Z& e& c4 o' `/ K8 C" Lcritical mass) O) B7 |2 y: b* z; i, {
n.
7 A& K; `# e/ U2 z* ~! E1. The smallest mass of a fissionable material that will sustain a nuclear chain reaction at a constant level.
4 j4 K, C' h3 {8 [3 _2. The amount of matter needed to generate sufficient gravitational force to halt the current expansion of the universe
3 ^2 m2 v, v+ @! a<http://www.thefreedictionary.com/critical+mass>
' k3 U; n5 X9 Y# F9 h5 M$ M& n) r' l3 m+ V' G( j) T7 P
< >
" ?$ c" s3 b& O/ P! i; L
1 b* q/ V: h$ Y! z# S; l[ 本帖最后由 墨涟 于 2008-10-24 15:04 编辑 ] |
|