Click on the audio player above to hear this segment.

It’s the second to last day in our search for America’s Greatest Innovation, and there are only three items left on our list: The mobile phone, the sewing machine, and our listener-selected wildcard pick, the transistor. 

Many of you were eager to point out that several of the innovations we’ve discussed wouldn’t even exist without the transistor. Well guess who agrees with you? Kevin Kelly, co-founder of Wired Magazine.

In our final pitch for the series, he argues for why the transistor is America’s greatest innovation. Click on the audio player above to hear Kelly.

 Vote For America’s Greatest Innovation Today!