Arquebus, or Harquebus, an early firearm. Several types of firearms were known by the name arquebus during the 16th and 17th centuries. All were fired from the shoulder or chest. The firing mechanism was originally a matchlock, a device that held a piece of burning wick and touched it to the powder in the gun when a trigger was pulled. Later, other firing arrangements were used.
The film "Pearl Harbor" is now playing. Look at the aircraft involved in that battle, technological marvels for their time.
Nine countries can now deliver nuclear warheads on ballistic missiles. At least three of those countries -- the U.S., Russia and China -- could strike any target anywhere in the world. Do you know what makes a nuclear bomb so deadly?