It is interesting to compare the proposed solar heaters, revolving to face the sun, with a project of, supposedly, the year 2660, which appeared twenty-four years ago in a novel written by the Editor of this magazine, and entitled “Ralph 124C 41 + .”
Pretty interesting guesses from 1935 (and even before that!)…
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Amazon may take on Alibaba?
Wearables — Enclosures help fight body humidity in costumes
Electronics — Staple Jumpers
Biohacking — “Health And Fitness Data Is Useless”
No comments yet.
Sorry, the comment form is closed at this time.