ClipArt ETC
A top view of the human brain.

Brain

A top view of the human brain.

The evolute spiral central junction is a wave pattern that mimics the wave of the sea.

Evolute Spiral Central Junction

The evolute spiral central junction is a wave pattern that mimics the wave of the sea.

A branch of an Ocotea catesbyana tree. They are commonly found throughout tropical climates, including Central and South America, and Madagascar.

Branch of Ocotea Catesbyana

A branch of an Ocotea catesbyana tree. They are commonly found throughout tropical climates, including…

"...shows a piece in double shear; here the central piece c d is forced out, while the ends remain on their supports M and N." —Hallock 1905

Double Shear

"...shows a piece in double shear; here the central piece c d is forced out, while the ends remain on…