Word: oak
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...number overcast nights and imperfect atmospheric conditions resulting from dust street illumination, smoke and uneven heating of the air. It was then decided to erect a new station for their work here in the Northern Hemisphere. This new station is located at Harvard, Massachusetts, at a place called Oak Ridge about 27 miles north-west of Cambridge...
Along with the development of Oak Ridge station and the increased collection of plates, a collection numbering five hundred thousand, it became imperative to construct a fire-proof building for their storage. In 1931 the erection of the Astrophotographic Building of the Harvard Observatory began. It was dedicated in the spring...
...better equipped than any other observatories in the world. There is now in operation at Fontein, a 60-inch reflecting telescope which is the largest telescope in the Southern Hemisphere and within two months a 61-inch reflector, the largest in the Eastern states will be operating at the Oak Ridge station, thus giving Harvard, two high-power telescopes capable of surveying the entire sky. In addition to these telescopes the Southern station has five other telescopes in constant operations. The Oak Ridge station has also five other telescopes and five more are located in Cambridge...
Tannic acid (or tannin) is the leatherizing element in oak, sumach and other plants. It is tannin in tea which makes a strong infusion pucker the mouth...
...Oak, Iowa, Bannery Shay Jr., protected by netting over his head and long gloves, set out to shoo a swarm of bees from a tree. A limb of the tree broke, carried the swarm to the ground. The queen bee, followed by others, crept up Shay's trouser-leg. He yanked the top of his trousers away from his middle, stood stock-still. The bees saw daylight, crawled out, buzzed away without stinging Bannery Shay...