Seattle’s Space Needle has its center of gravity 15m from the bottom and can withstand winds of up to 200mph. Its foundation is 9.14m deep, and it took just over a year to build. The saucer-shaped design was created by architect John Graham.
Five feet (15 m) from the bottom of Seattle’s Space Needle is the center of gravity of the 605-foot (184 m) tall structure. Built in 1962 and used as an observation tower in Seattle, Washington, it is designed to withstand winds of 200 miles (321.87 km) per hour. The foundation of the Space Needle is 30 feet (9.14 m) deep because it has such a small base in proportion to its height, over an area of only 120 feet (36.58 m). When the concrete was originally poured into the structure’s foundation, it set a record for the largest continuous pour of concrete in the western United States.
More information on the Space Needle:
Architect John Graham, who came up with the saucer-shaped design for the top of the Space Needle, was also the creator of the world’s first shopping mall.
The Space Needle took a little over a year to build and was given the nickname “The 400 Day Wonder” by US Steel for its record-breaking construction speed.
Hoge Sullivan, the Space Needle’s original manager, reportedly had a phobia of tall heights.
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