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Robert Goddard built his rockets using liquid propulsion, a mixture of gasoline and oxygen. The higher the temperature, the greater the thrust.
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The Millau Viaduct was built over one of the deepest, widest, and windiest canyons in the world. The two ginormous bridge deck pieces were slid together and assembled like a giant jigsaw puzzle.
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The stadium’s twin arches soar over 300 ft above the playing field. Together, they distribute 19 million pounds of thrust into four concrete abutments.
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When it was originally built, the Hoover Dam was the largest concrete structure in the world. It weighs 6.6 million tons and stands 700 ft tall. The biggest challenge engineers faced while building the dam was the extreme heat.
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