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The word protein was first proposed in 1844 by the Dutch chemist Gerhard Johan Mulder (1802-1880) from the Ancient Greek root proteios meaning the first quality. Proteins are defined as biochemical compounds consisting of one or more polypeptides, usually folded into a more compact form. Protein entered English in 1907.
Image of hexokinase, a common protein, courtesy Wikipedia under Creative Commons 3.0 license.
life:
On this day in 1877, Thomas Edison announces his invention of the phonograph.
Ever since Thomas Edison (pictured) created the phonograph after five days and nights hooking up his ears to rubber tubes, the world’s been grooving to the oldies thanks to the miracle of recorded music. But way before there was ever anything remotely resembling an iPod, listening to a particular recording meant listening to a victrola, gramophone, or phonograph, which could sound awfully staticky to our MP3-spoiled ears.
Still, there’s no reason not to break out the old LPs every once in a while and crank up that old-timey music!
The self-propelled Wave Gliders use wave energy for propulsion.
Credit: Liquid Robotics
Source: Robotic boats to travel across Pacific Ocean, PhysOrg.com