Following yesterday's ditty on how to calculate a vessel's GM - here's some food for thought...the center of gravity of Seattle's Space Needle is just five feet above grade or ground level (about the height of the guy standing in front of the Needle's north entrance) - considering the following facts - that's fairly impressive....
Location: 122 degrees W and 47 degrees N
The Space Needle was built in 1962 and is 620 ft tall. It took 467 cement trucks and 12 continous hours to pour the 5,850 tons of concrete. It also took 250 tons of rebar to form the Space Needle base.
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