Um par de LEDs que avisam quando há Notificações e/ou Mensagens no Facebook...
http://www.instructables.com/id/Facebook-LED-blink-on-new-notifications-and-messag-1/
Um dos mais simples Robots Andarilhos...
http://www.instructables.com/id/Simple-Bots-Inchworm/
...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 ETThe 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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