http://www.technologyreview.com/blog/arxiv/26194 or
http://arxiv.org/abs/1012.4415
This is a new nanoscale device that can detect RF. You put in a bias current between D and S, it goes through the graphene (sheet of 1 atom thick carbon). The graphene sheet resonates mechanically at an RF frequency (33 MHz in the reported device) when a signal is coupled in capacitively from the gate. The vibration induces a signal on top of the D-S current. The device works at 77 K (liquid nitrogen temperature), but hopefully can be developed for room temperature operation.
Showing posts with label parts. Show all posts
Showing posts with label parts. Show all posts
Sunday, December 26, 2010
Thursday, March 11, 2010
A Visit to Cable & Connectors
What stopped me in the aisle was an item hanging on the rack - An "11-pin octal socket". A weird concept, that.
You can search for them, too. I also find a listing for 4-pin octals.
Note added: Latin lovers and computer geeks will realize that "octal" means eight. See Wikipedia on tube sockets. I find sockets named "Septar" (7 pin), "Noval" (9 pin), "Decal" (10), and "Duodecal" (12). There was a brief time when engineers still knew some Latin! Now, an 11-pin octal doesn't raise an eyebrow.
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