NASA Technical TranslationNational Aeronautics and Space Administration, 1959 - Aeronautics |
Contents
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Common terms and phrases
aberration constant acceleration airplane altitudes amount angle apparatus ascent atomic axis Bernoulli's equation bulb calculated capillary coefficient combustion chamber combustion products components composition concentration curve determined diameter distance Earth Earth's atmosphere ecliptic energy equal equation Figure flight velocity flow rate fluid force formula fuel gases given gives gravitational separation H₂ head loss heat helium hydraulic hydrogen increase interplanetary investigations ionosphere ions jet engine kinetic energy km/sec latitude layer liquid liquid oxygen lunar mass spectrometer mean measured metal method molecules Moon Newcomb nitrogen nozzle nutation constant observations obtained orbit orifice oxygen ozone content P₁ particles pipe planet precession pressure propellant proper motions radius ratio right ascension rotation samples satellite solar parallax spaceship stars surface Table temperature tion trajectory Tsander tube upper atmosphere V₁ V₂ variation walls weight zenith telescope
Popular passages
Page 80 - POETRY, written at the close of the seventeenth and the beginning of the eighteenth centuries...
Page 30 - The centrifugal force equals the continued product of .00034, the weight of the body in pounds . the radius in feet (taken as the distance between the center of gravity of the body and the center about which it revolves), and the square of the number of revolutions per minute. Let F = centrifugal force in pounds...
Page 204 - Translation Academy of Sciences of the USSR Academy of Sciences of the UkrSSR Astronomical Journal of the USSR Proceedings of the Academy of Sciences State Institute of Astronomy im.
Page 167 - ... by very simple considerations. The only mean Sun known to astronomers is an imaginary body which moves uniformly in the equator at such a rate that the difference between its Right Ascension and that of the true Sun consists wholly of periodic quantities. These periodic terms are due to the obliquity of the ecliptic, the eccentricity of the Earth's orbit, and also to the small perturbations of the Earth's motion about the Sun. The difference between the Bight Ascensions of the two bodies at any...
Page 12 - Thus he proposed his law of universal gravitation, which we can state as follows: Every particle in the universe attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them.
Page 121 - ... 1st. On the relative mass of the moon. 2d, On the inclination of the axis of the vortex to the earth's axis. 3d. On the longitude of the ascending node of the vortex on the lunar orbit. 4th. On the longitude of the ascending node of the lunar orbit on the ecliptic.
Page 17 - ... local distribution of the water capital. The great cosmic influences which produce the variability of all climatic conditions, and therefore also of the circulating water capital, are the position of the earth's axis to the sun, by which the angle and therefore the heat value of the sun's rays vary in different parts of the earth and at different times of the year: the distribution of land and water areas, which produces a difference of insolation because the water has less heat capacity than...
Page 15 - ... at the University of Kazan, who found an oxygen content of 21.0-21.2%. We have already mentioned the first "world-wide" experiment of GayLussac and Humboldt in 1806. The second such experiment was the work of Reynolds, who also decided to check the oxygen content of the air at various places on the Earth's surface, using more accurate equipment /118/. Scientists from different countries sent him air samples. The results of the analysis of these samples are shown in Table 1. TABLE i These results...
Page 184 - ... c, is the specific heat of the gas at constant volume, and n is the polytropic index.
Page 8 - Cv being the specific heats of the gas at constant pressure and constant volume, respectively.