6/17/2004:

Intermediate Word: 
eleemosynary
  (a) charitable  (b) reentrant  (c) hateful  (d) publicly-owned
Difficult Word: - peplos  (a) membrane enclosing the stomach  (b) outer robe worn by Greek women  (c) digestive enzyme  (d) covered walkway

Earliest Bilateral Fossil Discovered - SpaceDaily  Scientists have reported that bilateral animals appeared 600 million years ago, about 50 million years before the Cambrian Explosion. Before the Cambrian 550 million years ago, most life on Earth was composed of bacteria and single-celled animals. But then something happened to cause an "explosion" of complex multi-cellular body forms. Scientists have long been puzzled about why this burst of diversity occurred. The fossils are the first evidence of bilateral animals -- body plans that have a left and right side, a top and bottom, and a mouth and anus. Early animals like sponges and cnidarians have radial symmetry.
The Geology Of Mars Mid-'04 - SpaceDaily  While the ability of Spirit to locate water-deposited and -modified material on Mars' surface is still in doubt, its twin Opportunity has rather stolen its thunder by finding solid proof of such material almost as soon as it landed on the strange, flat, hematite-covered Meridiani Plain. Opportunity spent its first two months happily poking around "Eagle" - the little 22-meter wide depression into which the lander originally bounced and rolled, and whose walls contained an outcrop of finely layered light-colored rock only 40 cm thick which provided quick and dramatic proof that the Meridiani plain was exposed to substantial amounts of surface or near-surface groundwater during the Noachian Era. 

McLellan motor, Caltech Archives

Small Worlds: Recalling the mighty mini-motor smaller than a pinhead  - BBC  Left: The large blob is a pinhead; McLellan's motor is smaller still   If nanotechnology - engineering at close to the molecular scale - sometimes seems like a religion, complete with competing sects and prophets, then its old testament is a talk given in 1959 by the celebrated American scientist Richard Feynman. Entitled There's Plenty Of Room At The Bottom, the talk looked forward to an age when the pages of books could be reduced to collections of dots composed of a few atoms, and computer circuits could be made from wires a thousand times narrower than a human hair. "It's actually fourteen thousandths of an inch on a side - a 64th is 15.6 thousandths. It's just like a pencil dot, that's all it is."





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