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"Poised between intransigent scepticism and uncritical credulity, it [science fiction] is par excellence the literature of the open mind."
- John Brunner
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| Slow Glass Rod | ||
| A transparent glass rod that makes light travel so slowly that it can trap light within its depths. |
You've heard of burning bugs with sunlight concentrated with a magnifying glass? That's for sissies who can't figure out a different way to concentrate sunlight - by slowing it down.
| He held a contraption made of a glass rod and assorted wires. Methuen sighted along his glass rod and pressed a button. A pop... and a flash!
"By applying the right e.m.f. to pure crown glass, its possible to raise its index of refraction to a remarkable degree. The result is that the light striking the glass is so slowed up that it takes weeks to pass through it in the ordinary manner. The light that is thus trapped can be released by making a small spark near the glass. "I can shoot an hour's accumulated light energy out the front end of the rod in a very small fraction of a second. |
| Technovelgy from The Exhalted,
by L. Sprague de Camp. Published by Astounding Science-Fiction in 1940 Additional resources -
|
Science fans will recognize one of the main properties of Bose-Einstein condensates, which can actually trap light waves, or slow them down to an inch a minute. Read a bit more about Bose-Einstein condensates; also, read about a modern experiment in which light is captured in a crystal.
Science fiction fans may recall the scenedows from Bob Shaw's 1968 story Light of Other Days. Probably the earliest references to the idea occurred in The Mirror That Remembered" (1932) by Christopher Blayre.
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Additional
resources:
More Ideas
and Technology from The Exhalted
More Ideas
and Technology by L. Sprague de Camp
Tech news articles related to The Exhalted
Tech news articles related to works by L. Sprague de Camp
Slow Glass Rod-related
news articles:
- Slow Light Will Speed Communications
- Light-Trapping Nanodoughnut Like Slow Glass
- New Material Absorbs and Stores Solar Energy
| Omniphobic Liquid-like Surfaces And de Camp's Telelubricator (1940) |
| MXenes - Atomic-Thin Metal Sheets Now Easier To Make |
| Do We Still Need Orbiting Factories? |
| MIT Self-Assembling Reprogrammable Materials |
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'... he had tightened the chest to gain maximum pumping action from the motion of breathing.'
'...a prayer wheel swung into view and began spinning at a furious pace.'
'And are all the people willing to be governed by a machine?'
'It's an old model,' Rawlins said. 'I'm not sure what to do.'
'the robot-boss was busy at the lip of the new lode instructing and egging the men on to greater speed...'
'He rode the bike with an intense lack of physical grace...'
