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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?

To: Jacques Chitte who wrote (9862)	11/13/2010 6:35:34 PM
From: Brumar89	Read Replies (2) \| Respond to of 69300

You may be right. Though otoh it may just take a lot of time. The gas turbine goes back over 2000 years .... thats a long liftoff time. Maybe rapid technological development requires a particular type of society and economy to happen. I hope we're not structuring our society in such a way that we slow down things. There's a very good reason there are no rotary structures at the cellular (and smaller) scale. Not manmade anyway ... yet. >>>> ATP SYNTHASE — A MARVELLOUS ROTARY ENGINE OF THE CELL Masasuke Yoshida, Eiro Muneyuki and Toru Hisabori ATP synthase can be thought of as a complex of two motors — the ATP-driven F 1 motor and the proton-driven F o motor — that rotate in opposite directions. The mechanisms by which rotation and catalysis are coupled in the working enzyme are now being unravelled on a molecular scale. ........ On a molecular scale, apart from ATP synthase, only bacterial flagella are known as a rotary motor. The crystal structures ofthe main part ofthe ATP synthase show, in atomic detail, how the appearance ofthis tiny motor made from ~3,500 amino acids is remarkably reminiscent ofman-made motors6 ......<<<<< stahlberglab.ucdavis.edu

To: Jacques Chitte who wrote (9862)	11/14/2010 4:45:41 PM
From: J_F_Shepard	1 Recommendation Read Replies (1) \| Respond to of 69300

"But look at 1970 to present. I do not see a single revolutionary bit of applied science or engineering to come out of that, nothing with the stature of the gas turbine or penicillin. " Would you not consider the revolutionary developments in microelectronics technology which made possible concomitant progress in software and computers as exponential growth? Chip density has been doubling every two years for decades following what is known as Moore's Law... Chips containing more that a billion transistors are now commercial. As you sit in front of your lap top or desk computer give it a thought...

To: Jacques Chitte who wrote (9862)	11/14/2010 6:26:44 PM
From: J_F_Shepard	1 Recommendation Read Replies (2) \| Respond to of 69300

"We went from horse&buggy to "The Eagle had landed" in that timespan!" The computer in that Eagle was quite primitive and probably didn't have the computing power of today's cell phones. The Eagle computer was built with single transistor chips.....by IBM. It was obsolete by the 69 moon landing. And btw, silicon state of the art dimensions are at 15 nm horizontally and much less than that in the vertical direction, eg 2 nm Where would magnetic resonance imaging fall on your scale..? Too close to 1970?