A to Z Challenge: Ultroz, Vibra-Transmitter, Weightlessness, X Gun, Yeast Steak, and Zero-Ray! Plus Challenge Survivor Gear

A to Z Challenge!
My theme - Origins of Science Fiction Terms and More! The term, its meaning (definitions from Technovelgy), and first book appearance / a movie that features this term / a blogger buddy who reminds me of that term.
I’m also the guinea pig for an experiment – A to Z Lite. I get between 100-170 comments per post in April during the Challenge. And it has just become too much to return that many every day, six days a week. The other A to Z Admins agreed to an A to Z Lite trial ru...