Word: orbiteer
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...will be aimed about 40° ahead of the moon, like a hunter leading a duck. Its initial speed of 23,827 m.p.h. will bring it to the moon's vicinity in a little more than three days. If aimed correctly, it will cross the moon's orbit slightly ahead of the moon, moving comparatively slowly. In this region the moon's gravitational field is dominant. It will pull the probe around the moon and sling it back toward earth in a lopsided figure eight...
When Russia sent the first man-made earth satellite into orbit last October, said Mahon during debate on the $38 billion defense appropriation, "we became aroused, humiliated, angry, frustrated and determined. Now the anger has cooled and the determination has been blunted." From a "peak of awareness and urgency," the U.S. has backslid to ''the humdrum plane of complacency." And complacency is dangerous. "The Soviet threat to our pre-eminence in industry, science and military striking power is steadily increasing. We have long been accustomed to think of the U.S. as occupying an unchallenged and unchallengeable position...
Citation: "One of the many stellar products that Brooklyn has sent into spacious orbit...
Eighth grade students learn enough chemistry to determine simple compounds of some twenty-odd elements, enough astronomy to calculate roughly the winter solstice with hand-made tools or to ask why the orbit of the moon is not a true ellipse, and enough geometry and trigonometry to construct very accurate maps on conic and other projections...
Meanwhile, they are also studying the phases of the moon, learning how it travels about the earth and why its orbit takes an elliptical shape. This leads to a study of Kepler's Law and its application to the orbits of artificial satellites. From here on it is only a few steps to the concepts of gravity, mass, and specific gravity...