Which Brand of Scope Base Rail Is Best
No surprise there for a lot of us. Along with the scope mounts Geissele produces mounts for Aimpoints T-series and Comp…
Which Best Describes the Image of a Concave Mirror
They can also be enlarged reduced or the same size as object. They can be behind the mirror if virtual or in front of t…
A 5m-diameter Parachute of a New Design
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