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Technology Stocks : George Gilder - Forbes ASAP -- Ignore unavailable to you. Want to Upgrade?

To: Maurice Winn who wrote (327)	2/19/1998 12:01:00 AM
From: JF Quinnelly	Read Replies (1) \| Respond to of 5853

Maurice, you could work for these guys. The fluid mechanics: "Members of Epstein's team conducted a two year scaling study to investigate the prospects for miniaturization. To their surprise, they found that many of the obstacles that they anticipated did not materialize -- and that miniaturization actually bestowed some advantages. 'We felt initially that scaling effects were going to cause problems relating to the viscosity of air,' Epstein says. Viscous forces in the air are larger at microscales because air molecules are proportionally larger.... As it turned out, microscale air-viscosity effects were not great enough to require a substantially different design approach. In addition, team members realized that since microscale materials are likely to have fewer flaws than macroscale materials they are proportionately stronger. As a result, the tiny rotors can actually be spun at higher speeds with lower risk of fracture than conventional rotors." The bearings: "They are now testing the low-friction air bearings that will permit the turbine to spin at full speed." There is no mention of the fuel in this article.