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"Science Fiction is speculative fiction in which the author takes as his first postulate the real world as we know it, including all established facts and natural laws."
- Robert Heinlein
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| Chest Disc | ||
| A voice activated wireless transmitter. |
| The chest discs were likewise self-contained sending sets, strapped to the chest a few inches below the neck and actuated by the vibrations from the vocal cords through the body tissues. The total range of these sets was about eighteen miles. Reception was remarkably clear, quite free from the static of 20th Century radios, and of a strength in direct proportion to the distance of the speaker. |
| Technovelgy from Armageddon: 2419 A.D.,
by Philip Frances Nowlan. Published by Amazing Stories in 1928 Additional resources -
|
Another exceptional idea, particularly the suggestion that the device is voice-activated by sensing vibration from the vocal chords.
This device is part of a set; see the entry for ultraphone ear-disc.
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and Technology from Armageddon: 2419 A.D.
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'What strange sensitivity! What an amazing development of science was manifested in every move and act and word of this Robot!'
'Forget the head atop it, the legs below, feet, arms, hands. It compels erasure.'
'That explains how it was so easy for me to remain motionless in midair or to perch on a flagpole in imitation of a giant bird, even in the windy city of Chicago.'
'The thirty-odd miles of The Factory’s circumference...'
'Wandering mines, you took them out on the edge of the desert, set them down and activated them.'
'Once in the very first weeks of the war, before everyone had been evacuated from the surface...'
'For a while your colonists will have to come up to the [orbital] Hospital...'
'...it raised its front end off the ground and waved its antennae at them, then raised one armoured claw as if to snip them out of the sky.'
