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1. Steel (28384 bytes)
   2: ...[Image:Steel framework.jpg|thumb|300px|Steel framework]]
   3: ...lloys with higher carbon content than this are known as [[cast iron|iron]].
   5: ...ral classes of steels in which carbon is replaced with other alloying materials, and carbon, if prese...
   8:
   10: ...humb|left|250px|This heap of [[iron ore]] pellets will be used in steel production.]]
2. Earth (30908 bytes)
   4: ...in here. It's been done to death. Find a gem with which to improve the article and you'll shine forev...
   7: ...e Earth''' or '''Terra''', is the third planet outward from the [[Sun]]. It is the largest of the [[s...
   14: ... sea level). Thus the Earth is an oblate spheroid within a [[tolerance (engineering)|tolerance]] of o...
   17: ...inner core. The liquid outer core gives rise to a weak [[magnetosphere|magnetic field]] due to the co...
   19: ... old [http://spaceflightnow.com/news/n0101/14earthwater/].
3. List of reference tables (55289 bytes)
   1: ...ndex of them, if they're scattered throughout the work).
   7: ...ou could drag it into your bookmarks toolbar, allowing the link to be accessible in the future from t...
   9: <!-- [[Wikipedia:Page size]] suggests not to divide lists ...
   10: ...se use the new section editing feature if your browser
   33: *[[Wikipedia:Library and Information Science basic top...
4. Lysosome (2936 bytes)
   1: ...gestion due to its unique internal 3-D structures which prevent enzymatic action{{ref|Campbell}}.
   4: *[[Lipase]], which digests [[lipid]]s,
   5: *[[Carbohydrate]]s, which digest [[carbohydrate]]s (e.g., sugars),
   6: *[[Protease]]s, which digest [[protein]]s,
   7: *[[Nuclease]]s, which digest [[nucleic acid]]s.
5. Alternative technology (2518 bytes)
   1: ...ch as greater efficiency, or different fuels or power sources.
   3: ...econdary materials, or that reduce or eliminate [[waste]] or [[emission]]s at the source of generatio...
   5: ...h should be done and how it should be funded; and which of a field of competing alternative technolog...
   7: ...ternative." For example, a class of chemicals known as [[CFC]]s have been replaced by more ozone-fri...
   10: * [[Wind generator]]s
6. Hybrid vehicle (47544 bytes)
   3: ...[[Whispering Wheel]] Bus, a hybrid bus with an in wheel motor design. |300px]]
   6: ...th all-[[Battery electric vehicle|electric car]]s which use batteries charged by an external source s...
   8: ...], hybrid was often used to describe an [[engine swap]], such as the common Honda [[Honda B engine#B1...
   12: ... accessdate=June 26 | accessyear=2002}} of George W. Bush's administration in 2001.
   14: ...oved to [[nuclear power]], which can operate underwater indefinitely, though a number of nations cont...
7. Insect (14296 bytes)
   29: ** [[Dermaptera]] (earwigs)
   32: ** [[Phasmatodea]] (walking sticks, timemas)
   33: ** [[Embioptera]] (webspinners)
   46: *** [[Strepsiptera]] (twisted-winged parasites)
   53: *** [[Hymenoptera]] ([[ant]]s, [[bee]]s, [[wasp]]s, etc.)
8. Bromine (8073 bytes)
   7: | rowspan="3" valign="center" | [[Chlorine|Cl]]<br />''...
   28: | align="center" | Gas: red-brown <br />solid: metallic luster<br />[[Image:Br,35....
   32: | [[Atomic weight]]
   41: | [[van der Waals radius]]
   45: | <nowiki>[</nowiki>[[argon|Ar]]<nowiki>]</nowiki>3[[d-block|d]]¹⁰ 4[[s-block|s]]<sup...
9. Cadmium (10755 bytes)
   7: | rowspan="3" valign="center" | [[zinc | Zn]]<br>
   33: | [[Atomic weight]]
   42: | [[van der Waals radius]]
   46: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>4d¹⁰ 5[[s-orbital|s]]²
   95: | 96.8 [[watt per metre-kelvin|W/(m*K)]]
10. Indium (8657 bytes)
    7: | rowspan="3" valign="center" | [[Gallium|Ga]]<br>'''In...
    32: | [[Atomic weight]]
    41: | [[van der Waals radius]]
    45: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>4[[d-orbital|d]]¹⁰ 5[[s-orbital|s]]...
    94: | 81.6 [[watt per metre-kelvin|W/(m?K)]]
11. Lead (8244 bytes)
    3: ...le elements. (But see the article on [[Bismuth]], which has a half life so long it can be considered ...
    6: ... or other metals to it. Lead is the only metal in which there is zero [[Peltier-Seebeck effect|Thomso...
    10: *Lead was used as a white pigment in [[Lead paint]].
    11: ...ncil]]s (for the last 450 years they've been made with [[graphite]]).
    15: ...on of its [[Latin]] name ''plumbum''. The English word "plumbing" also derives from this Latin root.
12. Aluminium (26079 bytes)
    1: ...m]] | right=[[silicon]] | above=[[boron|B]] | below=[[gallium|Ga]] | color1=#cccccc | color2=black }}
    29: {{Elementbox_thermalcond_wpmkat300k | 237 }}
    48: ...of [[transport]]ation and building in which light weight, durability, and strength are needed.
    51: ...age:Aluminum_Metal.jpg|thumb|left|Aluminium metal with an American [[penny]] for size comparison]]
    52: ... a thin layer of [[oxidation]] that forms quickly when it is exposed to air. Aluminium is about one-t...
13. Thorium (11307 bytes)
    7: | rowspan="3" valign="center" | [[Cerium|Ce]]<br>'''Th'...
    28: | silvery white
    32: | [[Atomic weight]]
    41: | [[van der Waals radius]]
    45: | <nowiki>[</nowiki>[[radon|Rn]]<nowiki>]</nowiki>6d²7s²
14. Urban planning (12224 bytes)
    1: ...m which they arise), although modern usage in the West largely dates from the ideas of the [[Congres ...
    6: ...eliberately rearranged to conform to a conscious, well-developed plan. For this reason, the [[Indus V...
    8: ... to provide water and transport, and carry away sewage, even in sieges.
    11: ...s the benefits of distinguishing geographic zones where different uses predominate.
    13: ...tage, an understanding of the "urban grain" or "townscape," pedestrians and other modes of traffic, u...
15. Microorganism (1865 bytes)
    2: ... (biology)|cell]]ed, or unicellular, organisms; however, some unicellular [[protist]]s are visible to...
    4: ...Bacterium|Bacteria]] and [[archaea]] are almost always microscopic. A number of [[eukaryote]]s are al...
    6: ...extremophiles]]. Some extremophiles have been known to survive for a prolonged time in a [[vacuum]],...
    8: ...esses. They can also be harmful as [[pathogen]]s when, as [[parasite]]s, they cause [[infection]]s.
    10: ... types of food, medical substances and biological weapons.
16. Ecology (24417 bytes)
    1: ...itat (ecology)|habitat]]. The term ''oekologie'' was coined in [[1866]] by the German biologist, [[E...
    4: ...ome sub-disciplines contributing to ecological knowledge.
    6: ...ntal issues. Additionally, a [[holism|holistic view]] of nature is stressed in both ecology and envir...
    8: Consider the ways a biologist might approach studying the life o...
    9: ... of the [[queen bee]], and how she relates to the worker [[bee]]s and the [[drone (bee)|drones]].
17. Mediterranean forests, woodlands, and shrub (7182 bytes)
    1: ...winters. Nearly all of the rainfall occurs in the winter and spring rainy season.
    3: ... basin, [[California]], Central [[Chile]], [[Southwest Australia]], and the [[Cape Province]] of [[So...
    5: ...s closely-related [[species]], especially in Southwest Australia and the Cape Province.
    7: ...n generally has small, dark leaves covered with a waxy outer layer to retain moisture in the dry summ...
    11: ...es dependent on fire for their reproduction are now threatened.
18. Freeganism (3438 bytes)
    1: ...ed or by taking it from waste bins, a practice known colloquially as "[[dumpster diving]]".
    3: ...e already exited the production-consumption cycle where money is used in exchange for goods.
    5: ...and that there are better ways to help, such as [[recycling]] and using [[alternative energy]]. Furthermore, ...
    7: ...or freeganism are [[autumn]] and [[winter]], when waste bins remain at [[refrigerator]] [[temperature...
    9: ...r [[veganism]], possibly for practical reasons as well as moral/philosophical; as discarded meat beco...
19. Irrigation (13719 bytes)
    2: ...all with water from another source in order to grow crops. In contrast, agriculture that relies only ...
    4: ==Overview==
    6: ...f the source and the seasonality of rainfall, the water may be channelled directly to the agricultura...
    8: ... with water, so that each plant has the amount of water it needs, neither too much nor too little.
    12: ===Ditch (furrow) irrigation===
20. Organic farming (38858 bytes)
    1: ...he [[EU]], organic farming is also defined by [[law]] and regulated by the [[government]].
    3: ==Overview==
    5: ...d the preferences of the individual [[farmer]]. However, all organic systems share common goals and p...
    8: ...[erosion]], nutrient depletion, structural breakdown);
    9: * promotion of [[biodiversity]] (e.g. growing a variety of crops rather than a single crop);...

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