The Amateur Scientist was a column in the Scientific American, and was the definitive "how-to" resource for citizen-scientists for over 72 years (1928–2001), making it the longest running column in Scientific American's history. The column was regarded for revealing the brass-tacks secrets of research and showing home-based experimenters how to make original discoveries using only inexpensive materials. Since its début in 1928, "The Amateur Scientist" was a primary resource for science fair projects. It also inspired amateur experimenters, launched careers in science, and enjoyed a place of honor in classrooms and school libraries all over the world.
Although always accessible to an amateur's budget, projects from "The Amateur Scientist" were often elegant and sophisticated. Some designs were so innovative that they set new standards in a field. Indeed, professionals continue to borrow from "The Amateur Scientist" to find low-cost solutions to real-world research problems.
"The Amateur Scientist" traces its pedigree to May 1928, when Albert G. Ingalls began the column as "The Back Yard Astronomer." Ingalls told amateurs how they could get personally involved in astronomy by building professional-quality instruments and carrying out cutting-edge observations. The first sentence in the new column stated: "Here we amateur telescope makers are, more than 3000 of us, gathered together in our own back yard at last." The name of the column changed several times, to "The Amateur Astronomer", "The Amateur Telescope Maker", and "Telescoptics." Much of the information from these articles was eventually published by Ingalls and Scientific American in the books Amateur Telescope Making. The articles and the books are credited with helping to expand the hobby of amateur telescope making. In April 1952, Ingalls chose to broaden the column's scope to include "how-to's" from all fields of science. When he did, he also changed the department's name to "The Amateur Scientist."
Ingalls wrote his column for almost 30 years, until his retirement in May 1955. In that year the publisher selected C.L. Stong to continue the feature. Stong was an electrical engineer from 1926 to 1962 for Westinghouse. He extended the column, frequently peppering it with extremely sophisticated projects including home-built lasers and atom smashers. Many working professional scientists say that they first got hooked on science through Stong's amazing columns. One of the activities Stong promoted during the International Geophysical Year was a program for amateur astronomers called Operation Moonwatch. It involved the tracking of artificial satellites by amateurs.