Hook and Eye Clasp. The hook and eye clasp is a simple hook on one end of the bracelet or necklace and an eye piece on the other end which is usually shaped like a figure eight. Hook and eye clasps work well for both necklaces and bracelets but is typically not as secure as other clasps such as the spring clasp.
A Climberâs Guide to Carabiners. Carabiners are the unsung heroes of the climbing world. They get beat up and save thousands of climbersâ lives day after day, all without the slightest nod of gratitude or appreciation for their ingenious form and function. A carabiner is a loop of metal with a spring-loaded gate that opens and shuts.
A recoilless rifle (RCLR) or recoilless gun is a type of lightweight tube artillery that is designed to allow some of the propellant gases to escape out the rear of the weapon at the moment of ignition, creating forward thrust that counteracts some of the weapon's recoil.he 75 mm recoilless rifle required at least two men to move it and could throw its shell several thousand yards with precision. Newer models replacing these were the 90 mm M67 and 106 mm M40 (which was actually 105 mm caliber, but designated otherwise to prevent confusion of ammunition with the earlier model).