...In this case he was using hollow magnets placed at known angles to each other... 
Various 「Astounding Stories of Super-Science January 1931」
...When the current was passed through the two of them, the magnetic field itself twisted the magnets, bending the copper supports and placing the magnets in their proper relative positions...
Various 「Astounding Stories of Super-Science January 1931」
...And suddenly there seemed to be a sort of inaudible snap, and one of the magnets hurt the eyes that looked at it, and only the edge of the last of the series was visible...
Various 「Astounding Stories of Super-Science January 1931」
...But the bullet had been unable to elude the compound-wound magnets, each of which now had quite four times the designed voltage impressed upon its coils...
Various 「Astounding Stories of Super-Science January 1931」
...The little steel-jacketed missiles were deflected by the terribly overstrained magnets of the catapult, but their energy was not destroyed...
Various 「Astounding Stories of Super-Science January 1931」
..." two magnets are placed so thatthe north pole of one is in juxtapositionto the south pole of the other,they attract one another," I said...
Various 「Astounding Stories of Super-Science February 1930」
...Their bodies seemed like magnets...
Various 「Astounding Stories of Super-Science February 1930」
...e sprang for the switch that controlled the great rescue magnets...
Various 「Astounding Stories, May, 1931」
...He threw his own ship into a dive; saw the others do likewise; thenleaped for the switch on the rescue magnets and pulled it open...
Various 「Astounding Stories, May, 1931」
...On the enclosed bridge Nat threw the switch of durobronze thatreleased the non-conducting shutter which gave play to the sixteengreat magnets...
Various 「Astounding Stories of Super-Science, August 1930」
...Tommy responded impatiently: “There’s no steel, no iron for magnets...
William Fitzgerald Jenkins 「The Fifth-Dimension Tube」
..."Silence! This is the Commander of Air! Orders for O—sixteen—L: seizethat ship! Your magnets!—disregard damage!—get your magnets on thatship and hold her...
Charles Willard Diffin 「The Finding of Haldgren」
..."Nocable magnets for Jimmy! He just smashed down on top of us, ripped offour fans and grabbed hold...
Charles Willard Diffin 「The Finding of Haldgren」
...More cloud banks were coming, but, for a time, theheavens were clear where the great red hull of a rusty freighter hunghelpless beneath a red and silver Patrol Ship whose magnets held fast toits prey...
Charles Willard Diffin 「The Finding of Haldgren」
...It went smoothly, perfectlyoperated by the magnets...
Raymond King Cummings 「Wandl the Invader」
...A single needle is not relied upon to secure the direction of the card,the latter being attached to a system of four or even more magnets, allpointing in the same direction...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...The existence of natural magnets composed of iron ore, and theirproperty of attracting iron and making it magnetic, have been knownfrom the remotest antiquity...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
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