When he's not busy being an editor, he is an avid artist who enjoys painting in a variety of styles. We hope you take the time to click on each image to see a larger view and to learn what the artist, Michael Arnold has to say about his paintings. As dog owners and people who care deeply for animals and wildlife, we wanted our Dog Encyclopedia to be a website that could empower pet owners to create the most positive, loving environment for their dogs. Dog Encyclopedia realizes that owning a dog is like adding a new member to your family.
Floridian Nature has everything your are looking for in Florida nature. The wildlife of Florida is rich and varied, yet most of us are familiar with only a dozen or so species: the "well known endangered species such as manatees and panthers; those, like raccoons and squirrels, that have adapted to urban environments; the frightening alligators and black bears; and those like the armadillo who can't seem to cross the road.
Yet they are just a few of the many animal species found in Florida. Toggle navigation. Norbert Rillieux Norbert Rillieux was a brilliant student of thermodynamics who became famous for devising evaporators for sugar cane, revolutionizing the sugar-refining industry and easing the labor of slaves.
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Patricia Bath Bessie Blount Dr. Benjamin S. Carson Emmett W. Chappelle Dr. Charles Richard Drew Dr. Ernest Everett Just Dr. Daniel Williams. Inventors While most African Americans were part of the hardworking labor forces in agriculture and industry, a small percentage were hard at work creating inventions that helped transform America.
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At that time, 25 percent of African Americans in New Orleans were free and mixed couples often raised families together. At twenty-four, he became the youngest instructor of applied mechanics and later, back home, developing a multiple effect steam-operated evaporator that turned raw sugar into sugar crystals. Frequently, these workers were scalded to death or endured debilitating burns.
And here is the bizarre twist: Rillieux became the most sought-after engineer in Louisiana: evaporator was embraced by widely by such persons as the Confederate secretary of war, Judah Benjamin. As the Civil War drew near, Rillieux faced an increasing number of restrictions, such as the loss of his right to walk along the street.
Eli Whitney has made his way into the annals of history. Norbert Rillieux can certainly be seen to have achieved all of these goals. 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.
Sugarcane had become the dominant crop within Louisiana, but the sugar refining process employed at that time was extremely dangerous and very inefficient. The juice was then evaporated by boiling it at extreme temperatures, resulting in granules being left over in the form of sugar. The danger stemmed from the fact that workers were forced to transport the boiling juice from one one kettle to another, chancing the possibility of suffering severe burns.
It was also a very costly process considering the large amount of fuel needed to heat the various kettles. During the s, France witnessed the introduction of the steam-operated single pan vacuum. The vacuum pan was enclosed in an area with the air removed this was necessary because liquids can boil at a lower temperature in the absence of air than with air present, thus costing less.
Rillieux decided to improve greatly on this efficiency by including a second and later a third pan, with each getting heating by its predecessor.
Because numerous sugar producers had received complaints about product quality, Forstall persuaded Norbert to become the Chief Engineer of the Louisiana Sugar Refinery.
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