London broil: how low and how slow? Following a variety of great tips, I cooked a London broil at 300 for one hour last night, to an internal temperature of 130. I let it rest 10 minutes before slicing it thinly. This was the juiciest and tenderest medium-rare London broil I ever ate, but that doesn't mean that it was as tender as filet mignon.
1 December 17, 1903 The Wrights make the first sustained, controlled, powered flights in an airplane, the Flyer 1, covering up to 852 feet and staying in the air for up to 59 seconds. 2  After four flights, the aircraft is overturned by a gust of wind and destroyed.
Origins of the Name. The very first piloted helicopter was invented by Paul Cornu in 1907, however, this design was not successful. French inventor, Etienne Oehmichen built and flew a helicopter one kilometer in 1924.Another early helicopter that flew for a decent distance was the German Focke-Wulf Fw 61, invented by an unknown inventor.rench inventor, Etienne Oehmichen built and flew a helicopter one kilometer in 1924. Another early helicopter that flew for a decent distance was the German Focke-Wulf Fw 61, invented by an unknown inventor.