es>from Fermilab? Their superconducting magnets are cooled with cubic liters of liquid helium. 3 That's a lot of He !:) (c27) uconv(1.0*liter^3,in) 9 (d27) 227246.0 in They probably use square tubing. You don't have to be a man of liters to know that your cubic ones work better in square tubes than your spherical ones. Seriously, I would be ashamed to work in a place that misspent its money on such airhead flacks (and their managers). Probably graduates from the GreenPeace brochure proudly displaying a photo of a drug company's vandalized drainpipe which had dumped "thousands of cubic liters of pharmaceutical waste." That pipe was round. --rwg DISHONEST HEDONISTS