AAVSO: American Association of Variable Star Observers
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Rebecca's Magnetometer (Abstract)

Volume 30 number 2 (2002)

Casper H. Hossfield

Abstract

(Abstract only) I describe a McWilliams torsion-balance magnetometer I helped Arkansas high school senior Rebecca Ragat build as a science fair project. Rebecca won awards at the regional fair which qualified her to enter her magnetometer in the Arkansas State Science Fair, where she won awards from the United States Geological Survey and the United States Navy. For those interested in building a McWilliams torsionbalance magnetometer similar to Rebecca’s, I have created a kit that is available through the AAVSO Solar Division. I also describe my experience as a judge at the Orange County Regional Science Fair in Florida, and encourage other scientists to participate in programs that help students learn about science through hands-on experience. Offering to be a judge at your local science fair is a good way to do this. [Ed. note: We are saddened to report that longtime member, solar observer, and former AAVSO Solar Division Chair Casper Hossfield died November 27, 2002. With his unceasing curiosity, remarkable inventiveness, and feisty character, Cap will be greatly missed.]