Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/water pills) or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using amiodarone safely.
First invented in China, cannon were among the earliest forms of gunpowder artillery, and over time replaced siege engines âamong other forms of ageing weaponryâon the battlefield. In the Middle East, the first use of the hand cannon is argued to be during the 1260 Battle of Ain Jalut between the Mamluks and Mongols.The first cannon in Europe were in use in Iberia by the mid-13th century.estern cannon during the 19th century became larger, more destructive, more accurate, and could fire at longer range. One example is the American 3 in (76 mm) wrought-iron, muzzle-loading rifle, or Griffen gun, used during the American Civil War, which had an effective range of over 1.1 mi (1.8 km).
Report Abuse. Machine guns were invented much earlier than WWI. Puckle developed a hand cranked anti bourding gun for the British Navy in the 1770's, but the funding collapsed when the South Sea Bubble burst.ating Newest Oldest. Best Answer: The modern machine gun(first to use the gasses from exploding round to chamber and fire new round automatically) was invented by Hiram Maxim in 1885.