X-Message-Number: 24157 Date: Thu, 27 May 2004 13:47:12 -0700 Subject: Re: Tiny Bearings And Springs Out Of Carbon Nanotubes From: Kennita Watson <> On Thursday, May 27, 2004, at 02:00 US/Pacific, Doug Skrecky <> wrote: > Tiny Bearings And Springs Out Of Carbon Nanotubes > > UC Berkeley Physicists Create Tiny Bearings And Springs Out Of Carbon > Nanotubes For Use In Microscopic Machines > Berkeley - Physicists at the University of California, Berkeley, have > peeled the tips off carbon nanotubes to make seemingly frictionless > bearings so small that some 10,000 would stretch across the diameter > of a > human hair. > I thought this was new, but a Google search on "tiny bearings and springs" showed it was old news: http://www.berkeley.edu/news/media/releases/2000/07/27_nano.html > UC Berkeley physicists create tiny bearings and springs out of carbon > nanotubes for use in microscopic machines > 27 Jul 2000 > > By Robert Sanders, Media Relations > EMBARGOED FOR RELEASE UNTIL 2 P.M. EDT (11 A.M. PDT) THURSDAY, JULY > 27, 2000, TO COINCIDE WITH PUBLICATION IN THE JOURNAL SCIENCE > > Berkeley - Physicists at the University .... Yoicks! What are these guys doing now? Have they made progress? Let's see -- a search on the name of the advisor (Alex Zetti), and Physics, netted only a couple of pages: http://www.designnews.com/article/CA318844?stt=001&pubdate=09%2F08%2F0 > Motion Control + Power Transmission > Nanomotor > Design News > September 8, 2003A University of California, Berkeley > (www.berkeley.edu) team, headed by physics professor Alex Zetti, has > built a 500 nm electric motor the world's smallest from carbon > nanotubes and silicon.... > ?? Hm -- it's actually "Zettl" -- ah, 750 pages, including: http://www.physics.ucsb.edu/~seminars/colloquia/Alex_Zettl.htm > Tuesday, 20 April 2004 > 4:00 PM > Broida Hall 1640 > ... > DR. ALEX ZETTL > UC Berkeley > > NANOTUBE-BASED MOLECULAR MOTORS > ... One motor design uses a multiwall carbon nanotube as a rotational > bearing, allowing low-level voltages to fully control the angular > position of an ultra-small metal plate rotor.... Science marches on!! Live long and prosper, Kennita -- Emancipate yourselves from mental slavery; none but ourselves can free our minds. -- Bob Marley, "Redemption Song" Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=24157