It is important not to confuse IMC with IFR (instrument flight rules) â IMC describes the actual weather conditions, while IFR describes the rules under which the aircraft is flying. Aircraft can (and often do) fly IFR in clear weather, for operational reasons or when flying in airspace where flight under VFR is not permitted; indeed by far the majority of commercial flights are operated solely under IFR.
Norbert Rillieux. Norbert Rillieux (1806-1894) was the inventor of the multiple-effect vacuum evaporator, which revolutionized the processing of sugar. He gained recognition as one of the prime architects of the modern sugar industry.
Norbert Rillieux can certainly be seen to have achieved all of these goals Norbert Rillieux was born on March 17, 1806 in New Orleans, Louisiana. Norbert was born a free man, although his mother was a slave. His father was a wealthy White engineer involved in the cotton industry. As a child Norbert was educated in the Catholic school system in New Orleans but was sent to Paris, France for advanced schooling.