Medical Definition of coprophilia. : marked interest in excrement; especially : the use of feces or filth for sexual excitement.
A scramjet (supersonic-combustion ramjet) is a ramjet engine in which the airflow through the whole engine remains supersonic. The highest speed attained by a rocket-powered airplane, NASA's X-15 aircraft, was Mach 6.7. The fastest air-breathing, manned vehicle, the SR-71, achieved slightly more than Mach 3. The X-43A more than doubled the top speed of the jet-powered SR-71.
Robert Goddard, an American scientist, invented and launched the first liquid-fueled rocket in 1926. It only made a short flight, and obtained a speed of about 60 miles per ho â¦ ur. Within a few years Goddard would be launching rockets reaching speeds over 500 miles per hour and traveling over 2000 feet.