One of the biggest problems materials scientists are keen to find a workaround for is its brittleness. Concrete doesn't have ...

Almost fifty years ago, when Haraldur Sigurdsson first came to the University of Rhode Island from Iceland, he got interested ...

Seashells are the abandoned exoskeletons of mollusks, like snails and clams. Numerous seashell varieties, including ark ...

The study, published in Marine Geology, further revealed how local hydrodynamics — waves, currents, and tides — interact with ...

The longevity of these structures can be attributed largely to Roman concrete. But what makes Roman concrete so special? What ...

Calcium carbonate is everywhere. From seashells to eggshells to antacid medicine, it is one of the most abundant minerals on our planet. But scientists still don’t agree on how it forms its many ...

"I started thinking that seashells have calcium ... To test this, POC-CC was synthesized with varying concentrations of calcium carbonate. Over six months, they observed various factors including ...

The process is inspired by the formation of seashells and coral reefs. By applying an electric current to seawater enriched with CO₂, scientists trigger the formation of solid minerals like calcium ...

Making calcium oxide from the calcium carbonate in the shells isn’t much harder, with ground seashells heated in a propane-fired furnace to release carbon dioxide. With the raw ingredients in ...

Seashells may seem like a harmless memento ... They are also a source of calcium carbonate, which can dissolve in seawater and be recycled back into the ocean. “Shells are remarkable in that ...