Earth-like planets may be common in the universe, a new UCLA study implies. The team of astrophysicists and geochemists presents new evidence that the Earth is not unique. The study was published in the journal Science on ...
Astronomy
Oct 17, 2019
7
508
Imagine grabbing carbon dioxide from car exhaust pipes and other sources and turning this main greenhouse gas into fuels like natural gas or propane: a sustainability dream come true.
Analytical Chemistry
Oct 18, 2019
0
2196
Sandia National Laboratories researchers have discovered the mechanism to "switch on" iron residing in clay mineral structures, leading to the understanding of how to make iron reactive under oxygen-free conditions.
Bio & Medicine
Oct 11, 2019
0
144
If scientists could give living cells magnetic properties, they could perhaps manipulate cellular activities with external magnetic fields. But previous attempts to magnetize cells by producing iron-containing proteins inside ...
Nanomaterials
Sep 25, 2019
0
651
In response to worldwide concern over the adverse effects of chemical substances on human health and the environment, most developed countries have legally restricted the use of dyes containing heavy metals or carcinogenic ...
Materials Science
Sep 23, 2019
0
6
Archaeologists in northern Greece have explored more than 200 new graves in a vast ancient cemetery that was plundered in antiquity but still retained rich finds, including a gold mask and bronze helmets.
Archaeology & Fossils
Sep 20, 2019
1
106
Soil scientists from the RUDN University (Russia) and Huazhong Agricultural University (China) have demonstrated that adding carbon compounds to the soil can increase phosphorus availability in paddy fields. For these purposes, ...
Earth Sciences
Oct 02, 2019
0
27
Iron (pronounced /ˈаɪ.ərn/) is a chemical element with the symbol Fe (Latin: ferrum) and atomic number 26. Iron is a group 8 and period 4 element. Iron and iron alloys (steels) are by far the most common metals and the most common ferromagnetic materials in everyday use. Fresh iron surfaces are lustrous and silvery-grey in colour, but oxidise in air to form a red or brown coating of ferrous oxide or rust. Pure single crystals of iron are soft (softer than aluminium), and the addition of minute amounts of impurities, such as carbon, significantly strengthens them. Alloying iron with appropriate small amounts (up to a few per cent) of other metals and carbon produces steel, which can be 1,000 times harder than pure iron.
Iron-56 is the heaviest stable isotope produced by the alpha process in stellar nucleosynthesis; heavier elements than iron and nickel require a supernova for their formation. Iron is the most abundant element in the core of red giants, and is the most abundant metal in iron meteorites and in the dense metal cores of planets such as Earth.
This text uses material from Wikipedia, licensed under CC BY-SA
