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A railgun or rail gun is a linear motor device, typically designed as a weapon, that uses electromagnetic force to launch high- velocity projectiles. The projectile normally does not contain explosives, instead relying on the projectile's high kinetic energy to inflict damage. [2]
A pound = 20 shillings = 240 silver pennies (formerly) The pound sterling emerged after the adoption of the Carolingian monetary system in England c.800. Here is a summary of changes to its value in terms of silver or gold until 1816. [44] [45] Value of £1 sterling in grams and troy ounces.