Black Powder.
Gun powder is always a mixture.
Base line performance measures are set. Powders are tested and results checked against the base line.
gun powder was udes for fireworks, then weapons
Gun Powder is the most important thing in a war because if you don't have gun powder you wouldn't stand a chance.
Because China invented gun powder.
Saltpetre+sulphurSaltpeter + sulfer = Gun powder
you go to the viking mountain and use the gun powder
john smith had the gun powder injury in 1609.
Gun powder is a heterogeneous mixture.
Gun powder was invented in China in the year 1044 AD.
Explain various performance measures of disks.