Industrial

Rufous Night Heron (Nycticorax caledonicus)

The nocturnal habits and chunky, cinnamon-toned form set the Rufous Night Heron apart from other Australian herons. There is a higher percentage of them-up 85 percent-also carry the virus...

Red-rumped wheatear (Oenanthe moesta)

This bird, known as the red-rumped wheatear or buff-rumped wheatear, belongs to the Muscicapidae family. Silty or partly...

The Cruciferae (Brassicaceae)

Most of the urban flowers illustrated here have obvious similarities. The flowers of honesty, wallflower, and shepherd's-purse are,...

The Melodic American Robin Sound

The American Robin sound is a familiar and beloved sight in many parts of North America. Observing this...

Canyon Wren: All You Want to Know About This Songster Bird

The canyon wren (Catherpes mexicanus) is a small North American bird in the wren family, Troglodytidae. The species...

The Power of Separation: Understanding the Centrifuge Machine

Centrifuge Machine A typical centrifuge machine consists of a motor, a rotating assembly (also known as a rotor), and a control system. The motor provides...