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Solar Power Camper Van, As Predicted By Robert Heinlein in 1940

This seems like a pretty exact duplicate of an old science fiction idea from 1940 - even to the extent of resembling pictures at the time.

Cue Robert Heinlein's idea from his 1940 story Coventry:

The vehicle he had chosen was not an unreasonable substitute for burros. It was extremely rugged, easy to operate, and almost foolproof. It drew its power from six square yards of sunpower screens on its low curved roof. These drove a constant-load motor, or, when halted, replenished the storage battery against cloudy weather, or night travel. The bearings were 'everlasting', and every moving part, other than the caterpillar treads and the controls, were sealed up, secure from inexpert tinkering.

Steel Tortoise from 'Coventry' by Robert Heinlein)

It could maintain a steady six miles per hour on smooth, level pavement. When confronted by hills, or rough terrain, it did not stop, but simply slowed until the task demanded equaled its steady power output.

(Read more about steel tortoise)

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Related News Stories - (" Vehicle ")

The Amazing Lightfoot Electric Scooter With Solar Assist
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