"It's also important to vary your stimuli. I always look for new things to shock the system. Just as you make muscles grow by shocking them, you make the mind grow by shocking it."
In this excerpt, the unthinkable has happened; the rolling roads have been sabotaged. Chief Engineer Gaines assembles his maintenance cadets and sets out to inspect and repair the damage.
Here's what they thought it would look like in 1940:
(Heinlein tumblebug from Astounding SF June 1940)
The oddest thing about a tumblebug is that it relies on "gyro-stabilization" the way we normally rely on two wheels. The Segway, a two-wheeled conveyance, similarly relies on gyro-stabilization.
Be sure to see how a modern company has created a monocycle concept vehicle similar to the tumblebug: read EMBRIO Embodies the Tumblebug. Closer yet, read about the Eunicycle Gyro-Stabilized Single Wheel Scooter.
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'... A vast complex electronic organism buried deep in the ground.'
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'It was not a large office, but it was quite spy-proof and quite undetectably so.'
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When you hear that music, you know you're in for adventure - and predictions of possible technological futures!
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'Vergil had trained the lymphocytes in the past six months to interact as much as possible with each other and with their environment...'
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'This was really free power... Power carried across millions of miles on Addison's tight-beam principle.'
AllSee Low Power Gesture Recognition
'It saved a lot of muscular expenditure, of course...'
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