Here's Why We Don't Use Gunpowder to Power Cars
by Michael Ballaban on Jalopnik, shared by Virginia K from Lifehacker on (#4M0Q9)
It's a thought I am 100 percent certain you have all considered at some point. Guns use a big explosion to shoot a bullet REALLY fast, so why don't we use the awesome power behind a speeding bullet to make a car go as fast as, well, a speeding bullet? Science, my friends. Science is the answer.