Science Fiction Various: Science and Invention Sampler. V1. 7 Feb 2012

[crutledge]

Science and Invention, a Gernsback technical magazine
First published as ELECTRICAL EXPERIMENTER, the name was changed to SCIENCE AND INVENTION in 1920; the last issue was published in August 1931. One of Hugo Gernsback's famous popular technical magazines. A good short history of this magazine can be found at the eNewsstand project.
The August 1923 and August 1924 issues are considered by some to have been the "first" science-fiction magazines published in the twentieth century. Certainly the success of these two issues led Gernsback to publish a specialized fiction magazine, AMAZING STORIES, beginning in 1926.

Many of the early covers were by famous technical-illustration specialist Howard V. Brown.

THE MAN FROM THE ATOM—G. PEYTON WERTENBAKER

HANDS CREATE RADIO MUSIC—H. WINFIELD SECOR

New World of Musical Tones Discovered by Experimenting with the Squeal of Radio Receiving Set