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Under U.S. federal law, the creation of a firearm for non-commercial purposes (i.e., personal use) has, almost without exception, been unlicensed and legal.Since the passage of the Gun Control Act of 1968, however, anyone intending to manufacture firearms for sale or distribution is required to obtain a Federal Firearms License, and each firearm made is required to bear a unique serial number.
The SeaPerch program is a curriculum designed program that teaches students basic skills in ship and submarine design and encourages students to explore naval architecture and marine and ocean engineering concepts. It was inspired by the 1997 book,Build Your Own Underwater Robot and other Wet Projects, by Harry Bohm and Vickie Jensen. [1]
An air vortex cannon can be made easily at home, [1] [2] from just a cardboard box. [3] A toy commercial version, with a barrel 12 inches (30 cm) wide and useful range of 20 feet (6.1 m) is sold under the name Air bazooka or Airzooka. [citation needed] Air cannons are used in some amusement parks such as Universal Studios to spook or surprise ...
Around the same period, the Byzantine Empire began to accumulate its own cannon to face the Ottoman Empire, starting with medium-sized cannon 3 feet (0.91 m) long and of 10 in calibre. [78] The earliest reliable recorded use of artillery in the region was against the Ottoman siege of Constantinople in 1396, forcing the Ottomans to withdraw. [ 78 ]
Formation of an EFP warhead. USAF Research Laboratory.. An explosively formed penetrator (EFP), also known as an explosively formed projectile, a self-forging warhead, or a self-forging fragment, is a special type of shaped charge designed to penetrate armor effectively, from a much greater standoff range than standard shaped charges, which are more limited by standoff distance.
Chick-fil-A fans are feeling a little spicy after the fast-food giant changed its recipe for waffle fries.. The chain recently posted a notice on its website announcing it had made "a slight ...
Devaughn Vele gets a good grade for concentration. The Denver Broncos receiver couldn't have figured that he would catch a touchdown when Bo Nix threw it toward the back of the end zone.
A discarded slice of birthday cake has unexpectedly sparked outrage among a group of friends.. In a post on Reddit's "Am I the A-----" forum, a 41-year-old man explained that a "weird" conflict ...