I think destructive effects of explosives are much more spectacular than their peaceful uses. This is likely to make people forget that explosives are the basis for many of mankind's most constructive efforts. Explosives blast rocks and ores loose in mines and quarries. They also move great masses of earth and break coal into small pieces. In term of explosive, it is a material that produces a rapid, violent reaction when acted upon by heat …showed first 75 words of 523 total…

…showed last 75 words of 523 total…supplementary booster¿¬. Blasting agents are the safest and least expensive explosives used in industry¿?. They are often used to shatter and heave rock in mining and excavating operations. Common blasting agents include dynamite and mixtures of ammonium nitrate and fuel oil. Low explosives burn rapidly rather than detonate¿ƒ. The most common type of low explosive is gunpowder. It serves as a propellant to shoot ammunition from guns and other weapons. Fireworks are also low explosives.