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Islamic Golden Age brass astrolabe Brass lectern with an eagle. Attributed to Aert van Tricht, Limburg (Netherlands), c. 1500.. Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, [1] but copper typically has the larger proportion, generally 66% copper and 34% zinc.
A Confederate cannoneer remembered, "Our guns were 12 pound brass Napoleons, smooth bore, but accounted the best gun for all round field service then made. They fired solid shot, shell, grape and canister, and were accurate at a mile. We would not have exchanged them for Parrott Rifles, or any other style of guns. They were beautiful, perfectly ...
The spherical case shot weighed 5.7 lb (2.6 kg) and released 41 musket balls when it burst. The canister round weighed 7.32 lb (3.3 kg) and contained 27 iron balls. [ 17 ] At 5° elevation, the gun could hurl the round shot a distance of 1,523 yd (1,392.6 m) with the standard firing charge of 1.25 lb (0.6 kg).
It fired a 12.03 lb (5.5 kg) round shot a distance of 1,619 to 1,680 yd (1,480 to 1,536 m) at 5° elevation. [ note 1 ] It could also fire canister shot , common shell , and spherical case shot . The 12-pounder Napoleon outclassed and soon replaced the M1841 6-pounder field gun and the M1841 12-pounder howitzer in the U.S. Army, while ...
The breech was sealed with an 18 kg (40 lb) brass case containing 30 kg (66 lb) of smokeless powder with a 160 gram (5.6 oz) gunpowder igniter. A cloth bag containing an additional 21 kg (40 lb) of smokeless powder and 380 grams (13 oz) of gunpowder was loaded between the projectile and the brass case.
Mk 12 Gun Assembly: 3,990 lb (1,810 kg). Mounts varied from 29,260 lb (13,270 kg) to 170,653 lb (77,407 kg) ... The powder case is a brass or steel alloy cylinder ...
A few weeks later, Foucault made his most famous pendulum when he suspended a 28-kilogram (62 lb) brass-coated lead bob with a 67-metre long (220 ft) wire from the dome of the Panthéon, Paris.
It fired a 18.4 lb (8.3 kg) shell to a distance of 1,322 yd (1,209 m) at 5° elevation. It could also fire canister shot and spherical case shot . The howitzer was designed to be employed in a mixed battery with 12-pounder field guns.