User:JWB

American expansion and division period

Republic of Texas Texas Annexation Wilmot Proviso

Missouri Compromise Line

Mexican-American War Treaty of Guadalupe Hidalgo Mexican Cession

History of New Mexico

U.S. provisional government of New Mexico ‎ Territorial evolution of New Mexico

Proposed state of New Mexico, 1850

Constitutional Convention (California)

Proposals for Texas northwestern boundary, 1850

Compromise of 1850 Gadsden Purchase

Crittenden Compromise

Other geography

Southern California - enlarged county names and cleaned up

8 Islands of Ancient Japan

Provinces of South Africa - converted to SVG and added captions

Language

Comparative linguistics

Linguistic typology Eurasiatic languages Borean languages

Standard Average European

Writing systems

Predominant scripts at the national level, with selected regional and minority scripts.

Alphabet Latin Cyrillic&Latin Greek Georgian Armenian	Logographic+Syllabic Hanzi (L) Kana (2S)+Kanji(L) Hangul(Featural-alphabetic S)+limited Hanja(L)
Abjad Arabic&Latin Hebrew	Abugida N, S Indic Ethiopic Thaana Canadian Syllabic

Writing system Determinative Radical (Chinese character) South_Arabian_alphabet#Sign_inventory History of the Arabic alphabet

East Asia

Standard Chinese Varieties of Chinese Mandarin Chinese Mandarin dialects Xiang Chinese Ported more detailed dialect map from Chinese Wikipedia Yue Chinese Tuhua

Anthropology

Wallacea is the group of islands within red area. Weber Line in blue. - Added red area defined by splines

Multiregional origin of modern humans Wallace Line Wallacea

Astronomy

Late Heavy Bombardment Nice model

Mathematics

Root system

Integrality of root systems - expanded with much additional data

E8 E8 lattice

Nuclear

Arms control

List of states with nuclear weapons Nuclear-Weapon-Free Zone

Nuclear weapons states (red) and Nuclear-Weapon-Free Zones (green)

Nuclear weapons states (red) and Nuclear-Weapon-Free Zones (blue)

Southern Hemisphere areas outside Nuclear-Weapon-Free Zones

Reactor technology

Template:Nuclear technology

Types

Fast-neutron reactor Integral Fast Reactor UHTREX

Components

Nuclear reactor coolant Neutron moderator

Fission products

Fission product Fission products (by element) Fission product yield Fluoride volatility

Long-lived
fission products

Prop: Unit:	t½ Ma	Yield %	Q * KeV	βγ *
99Tc	0.211	6.1385	294	β
126Sn	0.230	0.1084	4050	βγ
79Se	0.327	0.0447	151	β
93Zr	1.53	5.4575	91	βγ
135Cs	2.3	6.9110	269	β
107Pd	6.5	1.2499	33	β
129I	15.7	0.8410	194	βγ

Medium-lived
fission products

Prop: Unit:	t½ a	Yield %	Q * keV	βγ *
155Eu	4.76	.0803	252	βγ
85Kr	10.76	.2180	687	βγ
113mCd	14.1	.0008	316	β
90Sr	28.9	4.505	2826	β
137Cs	30.23	6.337	1176	βγ
121mSn	43.9	.00005	390	βγ
151Sm	90	.5314	77	β

Actinides				Half-life	Fission products
244Cm	241Pu f	250Cf	243Cmf	10–30 y	137Cs	90Sr	85Kr
232U  f		238Pu	f is for fissile	69–90 y			151Sm nc➔
4n	249Cf  f	242Amf		141–351	No fission product has half-life 102 to 2×105 years
	241Am		251Cf  f	431–898
240Pu	229Th	246Cm	243Am	5–7 ky
4n	245Cmf	250Cm	239Pu f	8–24 ky
	233U    f	230Th	231Pa	32–160
	4n+1	234U	4n+3	211–290	99Tc		126Sn	79Se
248Cm		242Pu		340–373	Long-lived fission products
	237Np	4n+2		1–2 My	93Zr	135Cs nc➔
236U	4n+1		247Cmf	6–23 My		107Pd	129I
244Pu				80 My	>7%	>5%	>1%	>.1%
232Th		238U	235U    f	0.7–12 Gy	fission product yield

Actinides

Transmutation in the thorium fuel cycle

230Th

→

231Th

←

232Th

→

233Th

(White actinides: t½<27d)

↓

↓

231Pa

→

232Pa

←

233Pa

→

234Pa

(Colored : t½>68y)

↑

↓

↓

↓

231U

←

232U

↔

233U

↔

234U

↔

235U

↔

236U

→

237U

↓

↓

↓

↓

(Fission products with t½<90y or t½>200ky)

237Np

in Thorium fuel cycle

Transmutation in light water reactor

Weapons-grade

Isotopes

Table of nuclides Isotope Tritium

Beta-decay stable isobars