"rockets made an extraordinary impression on the British, and led, from 1801, to what would now be called a vigorous research and development programme (at the Royal Woolwich Arsenal). Sir William Congreve made systematic studies of propellants, analysed performance applying Newton’s laws, developed a series of rockets of different sizes and characteristics, made a comparative cost analysis and published three books on the subject. Rockets were soon systematically used by the British during the Napoleonic Wars and their confrontation with the U.S. during 1812-14."