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"The point sticks in your head: physics rules. Virtue does not triumph unless the physics allows it."
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![]() A man and his wife go looking for a good deal on a woodlands "scenedow" for their apartment.
A piece of exposed slow glass was called a "scenedow:"
Bose-Einstein condensates are created when atoms are cooled to absolute zero; the atoms collapse into the lowest quantum state, producing a superfluid. Satyendra Nath Bose and Albert Einstein worked out the details in the 1920's. The unusual optical properties of BECs were predicted at that time.
Bose-Einstein condensates have optical densities such that the speed of light passing through the mass is extremely low - walking speed as opposed to its usual 186,000 miles per second.
This idea was used prior to Shaw's story; see the slow glass rod from The Exhalted, a 1940 short story by L. Sprague de Camp.
If you're interested in making light do tricks, check out NYC Heliostats and Star Wars Orbital Mirrors.
See the "Slow Glass-related news items" below for real-world applications.
Compare to glassite from Brigands of the Moon (1930) by Ray Cummings,
artificial transparent element from Last and First Men (1930) by Olaf Stapledon,
neo-crystal from Master of the Asteroid (1932) by Clark Ashton Smith,
transparent car roof from Sinister Barrier (1939) by Eric Frank Russell,
plani glass from Crystalized Thought (1937) by Nat Schachner and
thermalite from Planet of Eternal Night (1939) by John W. Campbell. Comment/Join this discussion ( 7 ) | RSS/XML | Blog This | Additional
resources: Slow Glass (Scenedow)-related
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Science Fiction
Timeline
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