"In 1970 I found little difficulty staying 30 years ahead of the man in the street, and now I find it difficult to stay 18 months ahead of the man on the street."
This is a very early attempt by sf writers to give a realistic option to space explorers who were stuck in the void - what can you push against in space?
Compare with the Reaction Pistol from Gordon A. Giles 1937 story Diamond Planetoid, the Personal Jet Thrust from Robert Heinlein's 1948 novel Space Cadet and the very clever Electrical Tether from Garrett P. Serviss' 1898 story Edison's Conquest of Mars
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DJI Phantom Drone Now With GPS Blocking
'Workarounds were illegal and the fines were expensive...'
OMOTE Face Hackers At Work Video
'...a video-manicuring program came on line.'
Vroom! Your Car Or Truck's Engine Noise Might Be Fake
'... a sound tape to supply the noise'
Care-O-Bot 4 Personal Service Robot
'Beside her moved a gleaming robant...'
Skin Wearable Harvests Power With Triboelectric Effect
'He had tightened the chest to gain maximum pumping action...'
EDSAP Wearable Stroke Detection
'His Altec cephalochromoscope, around which he had built the pleasure part of his schedule...'
Brand Killer Helmet Blocks Real-Life Ads
'Some merely held the holos [ads] at arm's length.'
In Vivo Micromotors Powered By Stomach Acid
First in vivo study of artificial micromotors.
Synthetic 'Squid Skin' For Camouflage On The Way
'The small, chameleon-clad figures continued to advance.'
3D Printer 'Teleports' Objects Like Simak's Way Stations
'An entirely new being but exactly like the old one'
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