heartburn
发表于 2025-3-28 18:34:41
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大沟
发表于 2025-3-28 20:19:13
Impulsive Midcourse Correction of a Lunar Shot,how a modest excess initial velocity over the minimum energy condition can be exploited to reduce the sensitivity of errors in magnitude, but not so well in direction of the actual velocity vector..This sensitivity to the direction error can be offset by a burst of propulsive impulse applied during
抛物线
发表于 2025-3-29 01:55:45
Indications for Increased Cosmic Radiation in the Interplanetary Space,ity on geomagnetic latitude. It turns out that these variations can be interpreted as changes of an electric potential of the Earth against the deep space. The sun’s activity seems to govern this potential. An independent indication for this arises from the difference in the energy spectra of primar
pineal-gland
发表于 2025-3-29 06:22:41
Automation for Interplanetary Navigation,he trajectory and minimum distance from the target..The determination of the position is accomplished by automatic sighting of one or two planets and measurement of their relative bearing in respect to the stars, as seen from the space-ship. Formulae are developed and an electromechanical computing
古文字学
发表于 2025-3-29 10:54:37
On the Degree of Accuracy, to be Attained by Astro-Scanners as an Aid in Automatic Interplanetary Ctforms to be used in combination with the .-computer for automatic interplanetary navigation, to obtain the necessary degree of accuracy..As a base for this investigation is used an arrangement of three, through a coordinator interrelated, stabilized platforms of the .-type, bearing sun and planet-v
Instantaneous
发表于 2025-3-29 13:53:50
Scientific Results from the Explorer Satellites, experiments made in the following areas:.1. Temperatures of both case and internal instrumentation; 2. Micrometeorite activity; 3. Cosmic-ray intensity..The results of preliminary analyses of these various measurements as carried out by the responsible institutions are given, together with a discus
鞭打
发表于 2025-3-29 17:57:46
Some Results from Direct Methods Applied to Optimum Rocket Trajectories,mplicity in showing both the necessity and sufficiency of the conditions. Emphasis is placed on the interception of a ballistic target with minimum fuel consumption, above the sensible atmosphere, as a typical problem.
他去就结束
发表于 2025-3-29 22:27:34
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glamor
发表于 2025-3-30 00:23:51
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Spinal-Tap
发表于 2025-3-30 06:58:38
Contoured Rocket Nozzles,sentropic, adiabatic and frictionless flow. Nozzle length and ambient pressure appear as governing restrictions under which the thrust is maximized. The solution of this extremal problem yields flow properties required along a suitably chosen control surface, and the nozzle contour is constructed by