from the keep-them-bearings-rollin' dept.
Senior Associate and IMM researcher Josh Hall writes "An article in the current Science, Low-Friction Nanoscale Linear Bearing Realized from Multiwall Carbon Nanotubes, by John Cumings and A. Zettl, describes recent work that will be very important in terms of building nanomachines with sliding parts. If you have an online subscription, read it here. (for those with access to a paper copy, the ref is Science 289, 602 (2000) )
There is a "perspective" entitled "NANOTECHNOLOGY: Beyond Gedanken Experiments" by Laszlo Forró, which mentions that the technique was foreseen by Drexler and references Nanosystems. It's here.