"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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SpotMini Robot Pierson's Puppeteer-Style
Now they're kind of cute, right?
Brick By Brick, Building Martian Bases
Don't try to boost everything from the surface of the Earth.
Elon Musk et. al. OpenAI Household Robot
'Any work a human being does around a house.'
BRUISE Smart Injury Detection Suit
'... Bee could see that three of them were disabled and two of them damaged.'
Tesla Model S Is Also A Boat (Sort Of)
'This Dick Dare contraption of yours...'
Promobot, The Runaway Russian Robot!
'Got yourself a runaway, Jack?'
Rowbot Small Autonomous Farm Robot
'...The tiny red glints of self-guided tractors.'
Amazon's Alexa To Recognize Emotions
Oh, Hal understood their emotions, all right.
Cool 'Single-Person Spaceships' Have Better SF Name
'A cabin so small, you couldn't stand up with the air lock closed..'
First Robot Suicide Has Science Fiction Roots
'What had happened to prevent my death?'
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