Business-card is a transistor amp

From Make's Matt Mets: "Aaron Alai designed this kicking electronic business card, which demonstrates how transistor amplifiers work. When you touch two electrodes on it, a small amount of current is conducted through your body, which is then amplified by a transistor to light an LED. I like the clean design, which is both functional and descriptive of how it works."

Aaron calls it a "small interactive exhibit" in business-card form. I've always had a passion for great cards -- this one is a cake-taker. I stand in awe.

Business Card / Transistor Amplification (Thanks, Eric!)

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Cory Doctorow

Upcoming appearances

* Feb 9, 2012, DeKalb, IL: Day of Doctorow, NIU
* Feb 10-12, 2012, Chicago, IL: Capricon 32
* Feb 13, 2012, Arlington, TX: UT Arlington College of Engineering Distinguished Speaker Series
* Feb 16, 2012, Victoria, BC: 13th Annual Privacy and Security Conference

Recent books:
* Context (essays)
* With a Little Help (short stories)
* For the Win (YA novel)
* Makers (adult novel)

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