Homework 54 this

墨涟

Nuclear weapons:
+ K+ K: ~% {* Y. \http://nuclearweaponarchive.org/Nwfaq/Nfaq0.html
! ?3 y. U" i7 s; H5 E/ w
* i* Q7 `( s- d  `" sWeapons 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>
, j7 J5 W& i* h* t. E, |
1 J+ o& U7 i6 o  c; U2 Z4 @
! m2 T  r/ {$ x7 p  z9 xNuclear 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:
( L, G2 A9 D! x' i& j) t- X- n5 ~<http://find.galegroup.com/gvrl/i ... 925&version=1.0>

' D# s$ [/ E  R- g0 e
% [; V0 ?* G! ^+ z% LClark, 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:
<http://find.galegroup.com/gvrl/i ... 925&version=1.0>



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:
# A8 Z" Z; k( R, H+ R9 K<http://find.galegroup.com/gvrl/i ... 925&version=1.0>
  O+ f. o% _. W3 J7 n2 c* i
critical mass
, F; P3 x* w) @* `" Z, m* y# L8 Sn.
& O7 i' H0 y% X- t& H1. 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>

0 M2 v, I' W- z% Y0 F<>
3 l# O) L% H. f
6 o0 P' H, T# I, P9 C[ 本帖最后由 墨涟 于 2008-10-24 15:04 编辑 ]