I first happened upon this marvel of engineering on this recent CNN Travel video story. Digging around the internet, I then found this late April story on CNN.
London's new see-through Sky Pool is first of its kind:
The Sky Pool is a 82-foot (25-meter) transparent swimming pool stretched between the 10th stories of two residential skyscrapers in southwest London's Nine Elms neighborhood -- and it's only open to the apartment complex's lucky residents[*].
[...] The pool was put through extensive strength testing at the Reynolds factory [in Colorado] before making its journey to the UK by road and sea. It was then lifted into place by a 750-tonne mobile crane, supported by a 50-tonne crane.
[...] "After a series of technical drawings and behavioral analyses, the dimensions of the pool were decided," says the Embassy Gardens website."
With sides 200 millimeters [(7.9 inches)] thick and 3.2 meters [(10.5 feet)] deep, and with a bottom 300 millimeters [(11.8 inches)] thick, the 50-tonne acrylic pool will span the 14 meters [46 feet] between the buildings, with steps and filtrations systems sitting either end, and five modes of lighting to add to the feeling of magic."
[...] "Once you swim off, you can look right down. It will be like flying," says Brian Eckersley, director of Eckersley O'Callaghan.
[*] a two-bedroom unit starts at just over £1 million (~$1.4 million).
Entry on Wikipedia.
(Score: 2) by ledow on Tuesday June 08 2021, @02:30PM
From the people who brought you a bridge that wobbled like hell for weeks just under the weight of foot traffic, a pool between two buildings that will move relative to each other all the time and where 50 tons of debris, and water will land on pedestrians and vehicles when it goes wrong.
And I thought we were making London so that it WASN'T such an easy terrorist target, by putting up barriers and removing litter bins, etc. for years.