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“My father had ideas about conservation long before the United States took it up.[…]You preserve water in times of flood and freshet to be used for power or for irrigation throughout the year. …”

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The Wards are open-topped, with skyscrapers rising from the superstructure. Towers are sealed against vacuum, as the breathable atmosphere envelope is only maintained to a height of about seven meters. The atmosphere is contained by the centrifugal force of rotation and a "membrane" of dense, colorless sulphur hexafluoride gas, held in place by carefully managed mass effect fields.

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I drew outlines (according to my usual custom) of all the hills on the horizon before us, and took angles on them with the theodolite.

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The molecular formula for ethane is C₂H₆, while the empirical formula is CH₃.

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Skin needs ultraviolet radiation to begin the synthesis of vitamin D, but dermatologists say you can probably get the necessary electromagnetic input from a mere 20 minutes of sun exposure a week, as you go about your daily affairs, sunblocked and sans beach.

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Thus we may say, that while the Naturalist employs principally the ideas of resemblance and life, the Physicist proceeds upon the ideas of force, matter, and the properties of matter.

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Nice motor!

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Construction is underway on the new bridge.

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Fowler was also interested in metallurgy and the use of new materials that could withstand greater stresses, something he expounded on when giving his presidential address to the new Institution of Mechanical Engineers in 1927.

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On this railway there were three inclined planes of the self-acting type, the full wagons pulling up the empty.

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These pulleys […] placed collaterally.

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The snapshot shows the whale parallel above the water almost as if it’s competing in belly-flop contest, doing a midair plank or floating across the bay like a hovercraft.

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This volume would have been at least twice as large, if I had not made bold to strike out innumerable passages relating to the winds and tides, as well as to the variations and bearings in the several voyages, together with the minute descriptions of the management of the ship in storms, in the style of sailors; likewise the account of longitudes and latitudes; [...]

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Near-synonyms: understructure, underpinnings, underbuilding, underframework

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Anna Pavlovna’s soirée was now in full swing. On all sides the spindles were humming away non-stop.

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The concrete floors of B2B sheds were already being built to an exacting degree of flatness, calibrated using lasers, so that forklifts would not teeter while lifting pallets to the highest shelves.

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Did you ever stop to think whether or not you knew how a monkey wrench should be used?

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Given a set of linearly independent vectors, it is often useful to convert them into an orthonormal set of vectors.

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Even though sometimes I take differing views from some articles and letters in GCN, I think it's a dynamite piece of work. Good luck and thanks again.

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gold mining