Noun

Wikipedia has an article on: Carbon

Singular carbon

Plural countable and uncountable; plural carbons

carbon (countable and uncountable; plural carbons)

  1. (uncountable) The chemical element (symbol C) with an atomic number of 6.
  2. (countable, informal) A sheet of carbon paper.
    Make sure the carbon is facing the second sheet of paper, before rolling it into the typewriter.
  3. (countable, informal) A carbon copy.
  4. A fossil fuel that is made of impure carbon such as coal or charcoal.
  5. (ecology, uncountable) Carbon dioxide, in the context of global warming and climate change.

Derived terms

Related terms

From Wiktionary under the GNU Free Documentation License.
Tue Jan 26 05:32:43 2010

Carbon is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, with C and C being stable, while C is radioactive, decaying with a half-life of about 5730 years. Carbon is one of the few elements known since antiquity. The name "carbon" comes from Latin language carbo, coal, and, in some Romance and Slavic languages, the word carbon can refer both to the element and to coal.

There are several allotropes of carbon of which the best known are graphite, diamond, and amorphous carbon. The physical properties of carbon vary widely with the allotropic form. For example, diamond is highly transparent, while graphite is opaque and black. Diamond is among the hardest materials known, while graphite is soft enough to form a streak on paper (hence its name, from the Greek word "to write"). Diamond has a very low electrical conductivity, while graphite is a very good conductor. Under normal conditions, diamond has the highest thermal conductivity of all known materials. All the allotropic forms are solids under normal conditions but graphite is the most thermodynamically stable.

All forms of carbon are highly stable, requiring high temperature to react even with oxygen. The most common oxidation state of carbon in inorganic compounds is +4, while +2 is found in carbon monoxide and other transition metal carbonyl complexes. The largest sources of inorganic carbon are limestones, dolomites and carbon dioxide, but significant quantities occur in organic deposits of coal, peat, oil and methane clathrates. Carbon forms more compounds than any other element, with almost ten million pure organic compounds described to date, which in turn are a tiny fraction of such compounds that are theoretically possible under standard conditions.

Carbon is the 15th most abundant element in the Earth's crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. It is present in all known lifeforms, and in the human body carbon is the second most abundant element by mass (about 18.5%) after oxygen. This abundance, together with the unique diversity of organic compounds and their unusual polymer-forming ability at the temperatures commonly encountered on Earth, make this element the chemical basis of all known life.

From Wikipedia under the GNU Free Documentation License
Sat Feb 6 01:13:29 2010

The EPA's Carbon Footprint - Reason Magazine
reason.com
The EPA's Carbon Footprint - Reason Magazine

Jonathan Adler

Mon, 15 Feb 2010 17:00:00 GM

Federal regulation of greenhouse gas emissions will impose new controls on millions of Americans.

Environmental Economics: How about carbon tax or permit revenue?
env-econ.net
Environmental Economics: How about carbon tax or permit revenue?

John Whitehead

Sun, 14 Feb 2010 14:40:40 GM

Apparently, it is my weekend to pick on Greg Mankiw. Fortunately for him, that is like the mouse taking a swing at the cat (and the cat is a big one, not like Garfield big, all fat and lazy, but like a catamount, something with a ...

Conference and Logistics Consultants Blog: What is a " Carbon ...
gomeeting.blogspot.com
Conference and Logistics Consultants Blog: What is a " Carbon ...

Allison Perrelli

Mon, 15 Feb 2010 20:34:00 GM

Your . carbon. footprint measures the impact your activities have on the environment, determined by the amount of greenhouse gases produced through burning fossil fuels, electricity, heating and transportation.​ The average U.S. household ...

From Google Blog Search: "carbon"
Mon Feb 15 17:59:35 2010

British Airways to power aircraft from waste biomass - Cleantech Group
news.google.com
British Airways to power aircraft from waste biomass

Cleantech Group

The self-contained, carbon dioxide neutral facility, likely to be located in East London, would convert about 5000 tons of waste biomass, or city waste ...

London's Garbage Will Soon Fuel Some British Airways Flights Discover Magazine (blog)

BA to build world's first biofuel plant for aircraft The Low Carbon Economy

British Airways To Build Plant That Would Produce Biojet Fuel AHN | All Headline News

Times of India  - Biomass Magazine  - Reuters

all 143 news articles »
Office Depot's LEED Gold Certified Store in Austin, TX Lowers Carbon Emissions ... - MarketWatch (press release)
news.google.com
Office Depot's LEED Gold Certified Store in Austin, TX Lowers Carbon Emissions ...

MarketWatch (press release)

The store, located in Austin, Texas, which was LEED Gold certified by the United States Green Building Council (USGBC) in May 2008, has lowered its carbon ...

Office Depot Decreases Emissions 23% at Austin Store Environmental Leader



all 26 news articles »
Koppers Holdings Inc. Reports Fourth Quarter 2009 Results - CNNMoney.com (press release)
news.google.com
Koppers Holdings Inc. Reports Fourth Quarter 2009 Results

CNNMoney.com (press release)

Sales for Carbon Materials and Chemicals (CM&C) increased by 1% or $2.1 million over the prior year quarter, which was more than offset by lower sales in ...



and more »

From Google News Search: "carbon"
Wed Feb 17 17:56:37 2010

cut carbon inside story jpg
winwithchris.org.uk
cut carbon inside story jpg
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apokalipse.googlepages.com
G15 carbon fibre jpg
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[source page]

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dreamgate.ne.jp
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From Yahoo Image Search: "carbon"
Sun Jan 31 21:10:41 2010

How does a carbon atom in glucose become a carbon atom in CO2 when it is in a root cell of a bean plant?
Q. and more questions here... Why do fish in the ocean add carbon dioxide to the water they live in? When a rabbit eats a starch molecule in a carrot, how does the glucose molecule get to a muscle cell in the rabbit's leg? what is the relationship between glucose and starch in a photosynthetic leaf? best answer given to person hu answers all the questions!
Asked by Roxanne - Thu May 22 11:14:30 2008 - - 1 Answers - 0 Comments

A. Glucose is metabolized by the processes of glycolysis and the Krebs cycle in all aerobic organisms like the bean plant. This is a complex series of organic conversions that you can find in many textbooks. The result is the complete conversion of glucose to H2O and CO2. Fish being aerobic organisms will metabolize carbohydrate in their food to H2O and CO2, just like the bean root cell. So, they add CO2 to the water they live in. In the rabbit, glucose is transported to muscle tissue via the bloodstream. Glucose and starch in the photosynthetic leaf are very closely related. Starch is simply a polymer of glucose units. A polymer is the chemical term for a molecule made up of indentical units like beads on a necklace.
Answered by Richard P - Sun May 25 09:14:55 2008

What is the limiting reactant in the furnace when carbon monoxide is produced by accident?
Q. Houses in many parts of the country these days are required to have carbon monoxide installed in case of furnace malfunctions. Furnaces in most homes burn natural gas and are supposed to produce water vapour and carbon dioxide, both harmless, but can create problems when the wrong reactant becomes limiting. - What is the limiting reactant in the furnace when carbon monoxide is produced by accident? - What might have caused the problem and how can it be remedied? - How carbon monoxide us harmful to humans?
Asked by unotherbyte - Mon Nov 12 16:29:43 2007 - - 2 Answers - 0 Comments

A. Oxygen. ? Binds to haemoglobin, preventing oxygen transport.
Answered by Sciman - Mon Nov 12 16:38:46 2007

How does carbon dioxide become trapped in soda to begin with?
Q. When fizzing occurs when opening soda, this is carbon dioxide being released from the liguid. But, how does it get their in the first place?
Asked by VG Master - Sat Dec 8 18:35:28 2007 - - 1 Answers - 0 Comments

A. The carbonation goes into the soda under a higher pressure than you get @ or above sea level. That's why, when you open the bottle, it releases the pressure, and some of the bicarbonate comes out of solution. If you have ever noticed, your Coke is more likely to 'boil over' when you are at a higher elevation. If you opened one while you were is a hyperbaric chamber under pressure, your drink would probably not fizz at all.
Answered by bronte heights - Sat Dec 8 18:43:49 2007

From Yahoo Answer Search: "carbon"
Thu Feb 18 10:22:32 2010