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

A genius electronics engineer 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.


('Door into Summer' by Robert Heinlein)

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
The first computer software drafting program (Computer Aided Design - CAD).

Eager Beaver - your friendly robot helper
Your friendly robot helper.

Flexible Frank - the all-purpose household robot
An all-purpose household robot.

Hired Girl Robot - robotic floor maintenance
The amazing floor-cleaning robot!

Radioactive Coding for Checks
Special coding system to easily recognize checks.

Robotic Hand
A dexterous manipulator for robots.

Stasis (Cold Sleep, Hibernation)
Hibernation for human beings, lasting for many years.

Thorsen Memory Tube
Computer component that allows a machine to learn through experience.

Universal Checkbook - radioactive checking
Fully electronic banking system, which allows easy withdrawal of funds from any bank.

Window-Willie - robot help for dirty windows
A robot that cleaned windows by electrostatic repulsion of dust and grime.

 

Technovelgy.com is devoted to the creative inventions of science fiction authors and movie makers. Look for the Science Fiction Invention Category that interests you, the Glossary of Science Fiction Inventions, the Timeline of Science Fiction Inventions, or see what's New.
Find
new authors and technologies - Shop for yourself, your library and your lab.

 

 

 

 

Science Fiction
in the News

Replace The Smartphone With A Connected Edge Node For AI Inference
re: Raymond F. Jones
(11/11/2025)

Artificial Skin For Robots Is Coming Right Along
re: Harl VIncent
(11/9/2025)

Robot Guard Dog On Duty
re: Neal Stephenson
(11/7/2025)

Wearable Artificial Fabric Muscles
re: HG Wells
(11/5/2025)

BrainBridge Concept Transplant Of Human Head Proposed
re: Alexander Belaev
(11/3/2025)

Google's Nano Banana Pro Presents Handwritten Math Solutions
re: Isaac Asimov
(11/1/2025)

Edible Meat-Like Fungus Like Barbara Hambly's Slunch?
re: Barbara Hambly
(10/29/2025)

Sunday Robotics 'Memo' Bot Has Unique Training Glove
re: Robert Heinlein
(10/27/2025)

Woman Marries Computer, Vonnegut's Dream Comes True
re: Kurt Vonnegut
(10/25/2025)

Natural Gait With Prosthetic Connected To Nervous System
re: Charles Recour
(10/25/2025)

Spidery 'Walk Me' Toyota Autonomous Wheel Chair Like Star Wars
re: George Lucas
(10/21/2025)

Dancing Robots Taught Dance Moves
re: Jerome K. Jerome
(10/19/2025)

Proof Of Robothood - Not A Person
re: James Cameron
(10/19/2025)

Indonesian Clans Battle
re: Jack Vance
(10/17/2025)

More SF in the News

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.