u do?....ok well a Black man invented that!......
CHARLES S.L. BAKER
Charles S. L. Baker (1859-1926) was an African-American inventor, who patented the friction heater.
Baker worked over the span of decades on his product, attempting several different forms of friction, including rubbing two bricks together mechanically, as well as using various types of metals. After twenty-three years, the invention was perfected in the form of two metal cylinders, one inside of the other, with a spinning core in the center made of wood, that produced the friction.[1] Baker started a business with several other men to manufacture the heater. The Friction Heat & Boiler Company was established in 1904, in St. Joseph, with Baker on the board of directors.[2] The company worked up to 136,000 dollars in capital, equal to nearly 4 million dollars in 2018.
Just getting an early start on Black History Month.....

CHARLES S.L. BAKER


Charles S. L. Baker (1859-1926) was an African-American inventor, who patented the friction heater.
Baker worked over the span of decades on his product, attempting several different forms of friction, including rubbing two bricks together mechanically, as well as using various types of metals. After twenty-three years, the invention was perfected in the form of two metal cylinders, one inside of the other, with a spinning core in the center made of wood, that produced the friction.[1] Baker started a business with several other men to manufacture the heater. The Friction Heat & Boiler Company was established in 1904, in St. Joseph, with Baker on the board of directors.[2] The company worked up to 136,000 dollars in capital, equal to nearly 4 million dollars in 2018.
Just getting an early start on Black History Month.....

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