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"I'm strictly an ivory-tower person. I can explain things but I can't do things."
- Isaac Asimov

Invisibility Shield  
  A means of concealing a physical object to the naked eye.  

This is a particularly interesting presentation of the idea, as it gives some idea about how the effect might be achieved.

"This structure, floating in a planetary orbit, was designed by me and built under my direction. It is protected from meteorites by certain forces of my devising. It is undetectable and invisible--your detectors do not touch it and light-waves are bent around it without loss or distortion. I am discussing these points at such length so that you may realize exactly your position. As I have intimated, you can be of assistance to me if you will."
From Triplanetary, by E.E. 'Doc' Smith.
Published by Not known in 1934
Additional resources -

Compare to invisibility from H.G. Wells' 1897 novel Invisible Man and the invisible cloak from Ray Cummings' 1931 novel Brigands of the Moon.

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Additional resources:
  More Ideas and Technology from Triplanetary
  More Ideas and Technology by E.E. 'Doc' Smith
  Tech news articles related to Triplanetary
  Tech news articles related to works by E.E. 'Doc' Smith

Invisibility Shield-related news articles:
  - Invisibility Cloak Fools Naked Eye
  - Invisible Drones Will (Not) Appear Over Your Town

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