Abstract: A high-sensitivity fiber-optic strain sensor, based on the Vernier effect and separated Fabry-Perot interferometers (FPIs), is proposed and experimentally demonstrated. One aircavity FPI is ...
Forgotten Weapons on MSN
Strange Story of Aimpoint’s Only Gun
Aimpoint, founded in 1975 by Arne Ekstrand and Gunnar Sandberg, began as a red-dot optic company and briefly ran a firearms division after hiring inventor Carl Bertie Johansson. Circa 1979 they built ...
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