Mollusks add daily to the margins of their shells, producing intricate patterns prized by beachcombers. Though this seems complex, the process can actually be explained by a simple network of ...

Over time, the inner layers of the shell dissolve through a chemical reaction, releasing calcium to build a chick’s developing bones. The eggshell undergoes structural changes to facilitate that ...

They then analyzed these thin sections using an electron microscope to study shell structure. The team examined the shells of fertilized eggs incubated for 15 days and compared that to ufertilized ...

Such shells have three distinct layers and are composed mostly of calcium carbonate with only a small quantity of protein--no more than 2 percent. These shells, unlike typical animal structures ...

In the current experiment, the team around Sidong Chen directly measured the number of neutrons occupying the individual shells in calcium 54 by painstakingly knocking out the neutrons one at a time.

Lobsters fetch a pretty price for their tasty meat, and now researchers say their shells could provide an untapped source of calcium for human health needs.

Artificial atoms comprised of shells of electrons, without a nucleus present, have been used in silicon as the building blocks for quantum computers. Written by Chris Duckett, Contributor Feb. 11 ...