The Door Into Summer by Robert Heinlein:
Science Fiction Inventions, Technology and Ideas

Engaging novel about a genius electronics engineer who creates general purpose robots for everyone to use. A greedy business partner and faithless fiancee trick him into cold sleep - not realizing that the future holds a way to help him get back at them. A careful reading of this novel provides insight into the character of the Heinlein Individual; a self-reliant American with a very particular set of values. Select an invention:

Drafting Dan - born before CAD

Eager Beaver - your friendly robot helper

Flexible Frank - the all-purpose household robot

Hired Girl Robot - robotic floor maintenance

Radioactive Coding for Checks

Robotic Hand

Stasis (Cold Sleep, Hibernation)

Thorsen Memory Tube

Universal Checkbook - radioactive checking

Window-Willie - robot help for dirty windows

 

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