Vincent Black Lightning Vincent Black Lightning The Vincent Black Lightning was a Vincent-HRD motorcycle first built in September 1948 at the Vincent works in Great North Road, Stevenage, Hertfordshire, UK, and produced from 1948 to 1952. The bike was a purpose-built factory modified Black Shadow that was then named and produced as the Black Lightning. At the time the Black Lightning was the fastest production motorcycle in the world. Vincent-HRD began motorcycle production in 1928 and were well established after World War II when they launched the Black Lightning. This was a production version of the Black Lightning which held the motorcycle land-speed
Nonsingular black hole models well above the Chandrasekhar limit include the gravastar and the dark energy star. While black holes were a well-established part of mainstream physics for most of the end of the 20th century, alternative models received new attention when models proposed by George Chapline and later by Lawrence Krauss, Dejan Stojkovic, and Tanmay Vachaspati of Case Western Reserve University showed in several separate models that black hole horizons could not form. Such research has attracted much media attention, as black holes have long captured the imagination of both scientists and the public for both their innate simplicity and mysteriousness. The recent