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This is how an Army mortar works (from an 11C)

At the top is the heavyweight 120mm mortar, a beast typically mounted in a tracked vehicle that blurs the line into true ...
American Rifleman

Editor’s Choice: Trijicon MRO SD

As can be sussed out from its name, the Miniature Rifle Optic (MRO) is a sealed reflex sight developed by Trijicon for use ...
Healio

SightGlass DOT spectacle lenses slow pediatric myopia in real-world Canadian population

A real-world Canadian study of Diffusion Optics Technology lenses by SightGlass Vision showed that they slowed myopia ...