Skeletons evolved as ocean chemistry changed
Skeletons and shells first came into being 550 million years ago as the chemical make-up of seawater changed, a study suggests.
Evolution
Apr 4, 2017
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Page 14 - News tagged with calcium carbonate
Coal-burning power stations are becoming more environmentally friendly
In the course of Project SCARLET, scientists at the TU Darmstadt have succeeded in developing the so-called Carbonate Looping process for the reduction of CO2 emissions during power plant operations almost to the point of ...
Energy & Green Tech
Mar 16, 2017
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Sustainable ceramics without a kiln
The manufacture of cement, bricks, bathroom tiles and porcelain crockery normally requires a great deal of heat: a kiln is used to fire the ceramic materials at temperatures well in excess of 1,000°C. Now, material scientists ...
Materials Science
Feb 28, 2017
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Study advances understanding the stories of ancient climate told by tiny shells
How can we know anything about the carbon dioxide levels in the atmosphere in earth's deep past? Tiny bubbles trapped in ice provide samples of ancient air but this record goes back only 800,000 years. To reach further back, ...
Earth Sciences
Feb 28, 2017
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From rocks in Colorado, evidence of a 'chaotic solar system'
Plumbing a 90 million-year-old layer cake of sedimentary rock in Colorado, a team of scientists from the University of Wisconsin-Madison and Northwestern University has found evidence confirming a critical theory of how the ...
Earth Sciences
Feb 22, 2017
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How strong is an egg?
Why does holding an egg between two hands and pressing along its long axis make it almost impossible to break? Professor Marc Andre Meyers was first puzzled by this as a child growing up in Brazil. He subsequently proposed ...
Plants & Animals
Jan 26, 2017
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'Super-dry' reforming reaction converts greenhouse gases to useful intermediates
(Phys.org)—A new "super-dry" carbon dioxide reforming reaction consumes two waste products, carbon dioxide and methane, and produces gases that can be used to make synthetic fuels and other important products.
How molluscs build their shells in the sub-zero waters of Antarctica
A new study on how molluscs build their shells in the sub-zero waters of Antarctica is published today (Friday 11 November) in the journal Scientific Reports.
Plants & Animals
Nov 11, 2016
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Atom-by-atom growth chart for shells helps decode past climate
For the first time scientists can see how the shells of tiny marine organisms grow atom-by-atom, a new study reports. The advance provides new insights into the mechanisms of biomineralization and will improve our understanding ...
Materials Science
Oct 24, 2016
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Natural mother of pearl structure, synthetic replication
Biomaterials play a crucial role in the development of future high-performance materials. A naturally occurring example of such biomaterial, the mollusk shell, guides chemical replication processes in laboratories. Due to ...
Materials Science
Aug 19, 2016
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