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quinta-feira, 12 de agosto de 2010

Um par de LEDs que avisam quando há Notificações e/ou Mensagens no Facebook...

Um dos mais simples Robots Andarilhos...

...E os primeiros Engenhocas datam de há 800.000 anos!
Discovery Pushes Human Tool Use Back 800,000 Years

By Stephanie Pappas, LiveScience Senior Writer

posted: 11 August 2010 01:03 pm ET
The timeline of early human evolution needs another revision with the discovery that human ancestors used tools 800,000 years earlier than previously realized.

The finding in Ethiopia, a pair of mammalian fossil bones marred by tool marks, pushes tool use back into the age of Australopithecus afarensis, an early human ancestor that lived in east Africa 3 million to 4 million years ago.

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