There is such a thing as a ray-screen, you kill-joy, and there are also lifting or tractor rays—two things I've been trying to dope out and that you've been giving me the Bronx cheer on.
Then he took the planet up in a tractor ray, and swung it around and around, as he now so vividly recalled doing in his childhood.
Perhaps its path cannot be changed, and it is headed for this city. If so, I can use Bill Johnson’s landing drome, send out a tractor ray and bring it in.
The thing in the water stirred, and they could see the rocks move. ‘Tractor rays,’ the professor said in a husky voice. ‘Theoretically impossible.’
First came the retinue of sycophants and guards. Cloaked in tight plastic of weblon to nullify pressor and tractor rays, they stationed themselves to one side of my cage.
The quality of the light around me changed. It somehow jelled into a shape-form. Until I felt it restrain my arms, I didn’t realize it was a tractor ray. And then it was too late to protest.
Doc Smith, in Amazing Stories
Last modified 2021-11-30 12:48:06
In the compilation of some entries, HDSF has drawn extensively on corresponding entries in OED.