Word: orbiter
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...both types of photoluminescence are similar physical phenomena. Many luminescent materials are crystalline. Impact of light waves moves some electrons away from their normal position within the latticed clumps of molecules called phosphors. Then, as each electron moves back to its original orbit, it emits light waves. Length of afterglow depends upon the time taken by the electrons in returning...
...December they consumed 775,472 bales, more than in any previous month except March 1937, which had more working days. If prosperity in the U. S. textile business could set King Cotton on his feet, he should be there already. Unfortunately, he was regally habituated to a cosmopolitan orbit. Producing around 12,000,000 bales a year, U. S. cotton growers never sold more than 8,000,000 (1940, a record) in the U. S. As long as the export market remains closed, the U. S. must either grow less cotton, or consume more...
...whole world knew that it was to German advantage to strike, hard and quickly, for many reasons: to relieve pressure on backtracking Italy, to batter down the last resistance in the Balkans, to bring France and Spain solidly into the German orbit, to smash the centre of the British Empire-and its No. 1 fleet base-before U. S. help to Britain reaches decisive proportions. The incredibly optimistic British waited for the attack, fortified from beach to beach, and serene in the conviction that "old Hitler's" attempt at invasion would be surest proof of his desperation...
Transits of Mercury are a means of charting its queerly complicated orbit. The long axis of its elliptical orbit does not stay fixed, but slowly rotates, and the planet's point of nearest approach to the sun shifts each year. Calculations of classical Newtonian gravitation predict some shift, but not nearly so much as that actually observed. In desperation a French astronomer named Leverrier decided that the rest of the shift must be due to an unseen planet even closer to the sun than Mercury. Leverrier called it "Vulcan." He looked long and hard for it. Once a doctor...
Then in 1915 Einstein produced his General Theory of Relativity, a beautiful theoretical concept but, after all, just a theory. Yet the Relativity mathematics was found to predict a shift of Mercury's orbit which was practically the same as the observed shift. This was the first observational prop for Relativity.* So Einstein may have felt a nostalgic glow last week, if anyone remembered to tell him that Mercury was transiting (passing directly between the sun and the earth...