CHANNELING OF PARTICLE BEAMS USING NANOTUBES may be possible. Tests at Fermilab and elsewhere have shown that high-energy beams can be deflected by the rows of atoms in suitably bent crystals (see Update 261). Now scientists at the Erevan Physical Institute in Armenia have proposed that crystals, or "ropes," of single-walled nanotubes (SWNT's) would be even better as efficient beam channeling materials since the carbon nanotubes' large bore (13.8 angstrom diameter) allows plenty of room for the passage of particle beams. (L.A. Gevorgyan et al., 10 Sept. 1997, JETP (Journal of Experimental and Theoretical Physics) Letters, a Russian journal, with English translation published by AIP.)