Homework 54 this

墨涟

Nuclear weapons:
7 h# I5 o9 r+ N' W/ T9 e$ Bhttp://nuclearweaponarchive.org/Nwfaq/Nfaq0.html
9 G4 c( t8 w2 U
$ B5 M+ Y& M$ g& {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:
3 c: F1 q: g  G+ w! x8 D<http://find.galegroup.com/gvrl/i ... 925&version=1.0>


' ~0 x9 p2 Y9 h0 w* h) NNuclear 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:
8 r3 H. z; n* ^& w  _: @<http://find.galegroup.com/gvrl/i ... 925&version=1.0>


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:
3 C3 u7 A' E, R0 `/ o<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
% [& L9 i7 d+ U3 q) Q- d( J4 b$ C
! l# I9 t9 \0 |/ X6 ?

3 j7 T  v8 U' cLerner, 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:
4 c6 A8 @7 b3 H: \; X<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
/ h/ h6 E# w3 J
critical mass
n.
" A' }& m3 P' a3 \1. The smallest mass of a fissionable material that will sustain a nuclear chain reaction at a constant level.
8 _6 Y2 q) A( p0 g- A; I2. The amount of matter needed to generate sufficient gravitational force to halt the current expansion of the universe
# `: _/ N0 G% m: }& G- n0 ?4 |<http://www.thefreedictionary.com/critical+mass>
0 |7 p. `. ]3 L( o
<>
/ m0 u. E3 g. F3 L# a. x: c3 ^1 `
1 o: ^5 L& j0 q9 d[ 本帖最后由 墨涟 于 2008-10-24 15:04 编辑 ]