Homework 54 this

墨涟

Nuclear weapons:
5 B$ R. n$ `1 {http://nuclearweaponarchive.org/Nwfaq/Nfaq0.html
) G: E9 @5 [8 W
1 \) F2 @8 k* F0 J* A% ~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:
<http://find.galegroup.com/gvrl/i ... 925&version=1.0>


& t5 P9 C$ w$ w! y$ 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:
<http://find.galegroup.com/gvrl/i ... 925&version=1.0>


( L3 q" [5 L! |% ]/ r+ Q  J5 WClark, 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:
. r# k9 [! a3 p# ]" U. q<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
9 O' h2 H5 O2 r, p9 p$ R$ w2 j( g+ R
1 [1 |0 o; q1 [  n$ g1 a" C' X
" c- }, }8 k9 D) ]7 [
Lerner, 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:
5 w' b2 k0 j' r$ U<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
2 w5 Y. L" T! ^* B
critical mass
n.
0 T8 M; q3 G$ B$ _, K1. The smallest mass of a fissionable material that will sustain a nuclear chain reaction at a constant level.
2. The amount of matter needed to generate sufficient gravitational force to halt the current expansion of the universe
<http://www.thefreedictionary.com/critical+mass>
" H  w/ G' u0 ?3 m' A
+ L/ I9 s8 _$ p& l! m! j<>

[ 本帖最后由 墨涟 于 2008-10-24 15:04 编辑 ]