1 Flares 1 Flares Ã. Patricia Lint made many mistakes in her more than 40 years as a notary. Those mistakes cost the western Pennsylvania woman her freedom. In 2006, police discovered her notary commission had expired and her seal had been confiscated by the Department of State. Yet she continued to pass herself off as a commissioned Pennsylvania notary, going so far as to use notary seals from other people. Lint was sentenced to one to two years in prison.
If a rocket is launched from the surface of the Earth, it needs to reach a speed of at least 7.9 kilometers per second (4.9 miles per second) in order to reach space.This speed of 7.9 kilometers per second is known as the orbital velocity, it corresponds to more than 20 times the speed of sound.Â© GFDL.he 'second cosmic velocity' is the so-called escape velocity from the Earth: 11.2 kilometers per second. This is the speed a rocket should attain in order to be able to escape from the Earthâs gravitational field and fly to other planets.
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.