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قراءة كتاب What Need of Man?

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‏اللغة: English
What Need of Man?

What Need of Man?

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دار النشر: Project Gutenberg
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approaching within striking distance west of Australia, then finally nosed in and took my chance on stretching it to one of the ten mile strips for a powerless landing. I did it in Australia. But if I had not had orthodox controls, had I even gotten that far, I would have churned up a good part of the Coral Sea between Sydney and New Zealand. You see, you've got to feel your way down through all that. That's the better part of flying, the "feel" of it. Automatic controls don't possess that particular human element. And let me tell you, no matter what they call it now—space probing, astronautics or what have you—it's still flying. And it's still men that will have to do it, escape velocity or no. Like they talk about push-button wars, but they keep training infantry and basing grand strategy on the infantry penetration tactics all down through the history of warfare. They call Clausewitz obsolete today, but they still learn him very thoroughly. I once discussed it with Bannister. He didn't like Clausewitz. Perhaps because Clausewitz was a German before they became Nazis. Clausewitz would not look too kindly on a commander whose concern with a battle precluded his concern for his men. He valued men very highly. They were the greatest instrument then. They still are today. That's why I can't really make too much out of the monkey. I feel pretty rotten about him and all that. But the monkey up there means a man someplace is still down here.

Anyway, after Lynds completed six orbital revolutions, they began the deceleration and descent. The whole affair, as I said, was very solidly based on technical determinations of stresses, heat limits, patterns of glide, and Bannister's absolute conviction that nothing would let go. The bitter part was that it let go just short of where Lynds might have made it. He was through the bad part of it, the primary and secondary decelerations, the stretches where you think if you don't fry from the heat, the ship will melt apart under you, and the buffeting in the upper levels when ionospheric resistance really starts to take hold. And believe me, the buffeting that you know about, when you approach Mach 1 in an after-burnered machine, is a piece of cake to the buffeting at Mach 5 in a rocket when you hit the atmosphere, any level of atmosphere. The meteorites that strike our atmosphere don't just burn up, we know that now. They also get knocked to bits. And they're solid iron.

Lynds was about seventy miles up, his velocity down to a point or two over Mach 2, in level flight heading east over the south Atlantic. From about that altitude, manual controls are essential, not just to make one feel better, but because you really need them. The automated controls did not have any tolerance. You don't understand, do you? Look, when one flies and wants to alter direction, one applies pressure to the control surfaces, altering their positions, redirecting the flow of air over the wings, the rudder and so forth. Now, in applying pressure, you occasionally have to ease up or perhaps press a bit more, as the case may be, to counteract turbulence, shift in air current, or any of a million other circumstances that can occur. That all depends on touch. It's what makes some flyers live longer than others. It's like the drag on a fishing reel. You set it tight or loose according to the weight of the fish you're playing. When you reel in, the line can't become too tight or it will snap, so you have the drag. It's really quite ingenious. It lets the fish pull out line as you reel in. It's the degree of tolerance that makes it work well as an instrument. In flying, the degree of tolerance, the compensating factor is in man's hands. In the atmosphere, it's too unpredictable for any other way.


Well, they calculated to set the dive brakes at twelve degrees at the point where Lynds was. Lynds saw it all.

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