Macron promises heat pump boost in French climate plan
President Emmanuel Macron said on Monday France will triple its heat pump production over the next four years as part of a government climate plan.
Sep 25, 2023
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Energy & Green Tech
President Emmanuel Macron said on Monday France will triple its heat pump production over the next four years as part of a government climate plan.
Sep 25, 2023
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Engineering
Asphalt is primarily known for use in roadways, but it's also used to pave playgrounds, bicycle paths, running tracks and tennis and basketball courts—all platforms for activities where breathing toxic fumes can be dangerous. ...
Sep 22, 2023
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Energy & Green Tech
Researchers from the University of Tsukuba have developed a method for the real-time visualization of the current distribution inside a fuel cell through non-destructive diagnostics using magnetic sensors.
Sep 22, 2023
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Engineering
Oak Ridge National Laboratory researchers have conducted a comprehensive life cycle, cost and carbon emissions analysis on 3D-printed molds for precast concrete and have determined that the method is economically beneficial ...
Sep 21, 2023
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Business
As renewable energy sources like wind and solar ramp up, they can be used to sustainably generate hydrogen fuel. But implementing such a strategy on a large scale requires land and water dedicated to this purpose.
Sep 21, 2023
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Engineering
This year's heightened drumbeat of extreme weather shows us how little time we actually have to slash emissions.
Sep 21, 2023
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Energy & Green Tech
The team led by Professor In Soo-Il in the Department of Energy Engineering at DGIST has developed a high-efficiency photocatalyst capable of converting carbon dioxide (CO2), a major contributor to global warming, into the ...
Sep 20, 2023
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Energy & Green Tech
The U.K. government must kick-start the construction of large-scale hydrogen storage facilities if it is to meet its pledge that all electricity will come from low carbon sources by 2035 and reach legally binding net zero ...
Sep 20, 2023
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Engineering
Upgrading, or retrofitting, the world's iron and steel processing plants early could reduce carbon emissions by up to 70 gigatonnes by 2050, roughly equivalent to two years' worth of net global carbon emissions, according ...
Sep 20, 2023
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Engineering
From smartphones to electric cars, lithium ion batteries have changed the way we power our lives. And in the push towards net zero carbon emissions globally, they will be a vital part of decarbonizing transport networks and ...
Sep 19, 2023
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Carbon (pronounced /ˈkɑrbən/) 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 12C and 13C being stable, while 14C 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 one of the least abundant elements in the Earth's crust, but 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.
This text uses material from Wikipedia, licensed under CC BY-SA