A recent study ( introduces a triangular inverse shell element, referred to as iKS3, offering an accurate yet computationally ...

There’s another way of making a structure. A shell structure is just made of a thin, curved outer layer and it’s hollow inside. Like this, or this, or this, or this. A shell structure doesn ...

A shell structure has a thin curved outer layer and is hollow. These structures often are used to hold or protect something. They usually have only a small number of joins or no joins at all.

The many chambers of their shells likely helped these cephalopods glide through the planet’s warm, shallow seas. A thin, tubelike structure called a siphuncle pumped air through the interior ...