"I operate by a code that makes me responsible for what I do, makes me definitely, directly, genuinely responsible. I am precisely the kind of person I made myself out to be."
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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NASA's Robotic Mining Competition
''Dave,'[Powell] said. 'You're a stable, rock-bottom mining robot...'
Should Humanity Switch To Robotic Pets?
'What about an exact electric duplicate of your cat?'
L'Oreal To 3D Print Human Skin
'...She helped the doctor spray on surrogate skin.'
LG Display Creates OLED Wallpaper
'A television that unrolled like a poster...'
Cool Foldable Mini-Quadcopter
'Eddie pocketed the bee cam...'
NASA's Subvocal Speech System
'She took a subvocal input device from its rack...'
Cicada UAV Dropped In Swarms
'We... dropped roughly a thousand eyes on Beta Hydri IV.'
AI's Now Being Taught Anger
Actually the Prime Radiant was just a display device.
Cicret Interactive Skin Display Prototype
'A strip of readout skin on my wrist...'
Lily Camera Video Sport Selfie Drone
'He set his camera to follow him, and it hovered behind him like a large tame bee.'
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