Homework 54 this

墨涟

Nuclear weapons:
http://nuclearweaponarchive.org/Nwfaq/Nfaq0.html
+ _% b2 D5 ^( j! ?2 {9 G! Y) V
; v2 [' H" l: M. tWeapons 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:
$ d) L; q/ t9 m- f<http://find.galegroup.com/gvrl/i ... 925&version=1.0>

2 Q2 {+ o% F* O$ M% i4 H: E# H% Q
: n0 ]' m& ~% x; eNuclear 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>
( F# T) |9 s& K2 e5 T4 O1 v( Q% u

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:
$ c$ s2 P  H, B& P: }7 h  @2 l<http://find.galegroup.com/gvrl/i ... 925&version=1.0>



8 Y8 W, F6 }# ^% Q$ ^/ QLerner, 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:
<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
7 y  o  ^6 I3 |! M3 }! ?
; F  C" s8 n8 O' D! Ocritical mass
1 R1 g+ `/ A: w0 o& {n.
1. The smallest mass of a fissionable material that will sustain a nuclear chain reaction at a constant level.
6 C* X# d% k+ I1 e2. The amount of matter needed to generate sufficient gravitational force to halt the current expansion of the universe
/ K9 X( ^1 j: _' g0 x<http://www.thefreedictionary.com/critical+mass>
( a) e0 B' r+ r6 g! s5 V* b: F
<>

[ 本帖最后由 墨涟 于 2008-10-24 15:04 编辑 ]