give me three inventions ,by three blacks?

of course this would need to be from people who did not go through any caucasian schooling at all as that would alter everything .wouldnt it?this is not a hate mail format,simply needing others opinions to get the answer to the question.

11 Answers

  • 1 decade ago
    Favorite Answer

    Samuel Elmer Imes

    chemist, physicist

    Born: 10/12/1883

    Birthplace: Memphis, Tenn.

    In 1918, Samuel Elmer Imes became only the second African American to earn a doctorate in physics. His dissertation broke new scientific ground, presenting a new form of research, that fundamentally changed quantum theory. In discovering how to determine molecular structure through high-resolution infrared spectroscopy, particularly, measuring the distance between atoms, Imes proved that quantum theory could be applied to all things at the molecular level. He served as head of the Physics department at his alma mater, Fisk University, from 1930 to his death in 1941.

    Benjamin Bradley


    Born: 1830?

    A slave, Bradley was employed at a printing office and later at the Annapolis Naval Academy, where he helped set up scientific experiments. In the 1840s he developed a steam engine for a war ship. Unable to patent his work, he sold it and with the proceeds purchased his freedom.

    David Crosthwait, Jr.

    engineer, inventor

    Born: 1898

    Birthplace: Nashville, Tenn.

    David Crosthwait held numerous patents relating to heat transfer, ventilation, and air conditioning, the areas in which he was considered an expert. Holding B. S. and M. S. degrees from Purdue University in engineering, Crosthwait began working as a research engineer and director of research laboratories for C. A. Dunham Company, in Marshalltown, Iowa. He served as technical advisor to Dunham from 1930 to 1970 and, in addition to designing the heating system for Radio City Music Hall in New York City, he authored texts and guides on heating and cooling with water. After his retirement in 1970, Crosthwait taught at Purdue University.

    Died: 1976

    Clarence L. Elder

    engineer and inventor

    Born: 1935

    Birthplace: Georgia

    A native of Georgia, Clarence Elder founded Elder Systems Incorporated, a research and development company located in Baltimore, Maryland. Elder developed Occustat, a monitoring and energy conservation system. Designed to reduce energy usage in buildings, Occustat works by using a light beam aimed across building and room entrances to monitor traffic and, thus, occupancy. When the building or room is empty, heating, cooling, and lighting controls are lowered, reducing energy consumption by as much as 30 percent. Occustat is in use in hotels and schools. Elder, a graduate of Morgan State College, has also received 12 additional patents in the United States and abroad.

    Thomas L. Jennings


    Born: 1791

    Birthplace: New York, N.Y.

    A tailor in New York City, Jennings is credited with being the first African American to hold a U.S. patent. The patent, which was issued in 1821, was for a dry-cleaning process.

    Frederick McKinley Jones


    Born: 1892

    Birthplace: Cincinnati, Ohio

    Jones was born in Cincinnati, Ohio. An experienced mechanic, he invented a self-starting gas engine and a series of devices for movie projectors. More importantly, he invented the first automatic refrigeration system for long-haul trucks (1935). Jones was awarded more than 40 patents in the field of refrigeration.

    Percy Lavon Julian


    Born: 4/11/1899

    Birthplace: Montgomery, Ala.

    In addition to an extensive teaching career at such colleges as DePauw University, which would not offer him a professorship because he was African American, Howard University and West Virginia State College, Percy Lavon Julian made significant discoveries in the private sector. In 1935 Julian developed physostigmine, a drug that is used in the treatment of glaucoma. While working for the Glidden Company, Julian worked with the soya bean, developing a protein that helped to develop AeroFoam a fire extinguisher used by the Navy. After leaving Glidden, Julian, who held a bachelor's degree from DePauw, a Master's degree from Harvard University, and a Ph.D. from the University of Vienna, founded Julian Research, focusing on the production of sterols. He synthesized the female hormone progesterone, and the male hormone testosterone by extracting sterols from soybean oil. His most famous exploit however, is his synthesis of cortisone which is used to treat arthritis and other inflammatory diseases.

    Granville T. Woods


    Born: 1856

    Birthplace: Columbus, Ohio.

    Woods was born in Columbus, Ohio, and later settled in Cincinnati. Largely self-educated, he was awarded more than 60 patents. One of his most important inventions was a telegraph that allowed moving trains to communicate with other trains and train stations, thus improving railway efficiency and safety.

    Ernest Everett Just

    biologist, educator

    Born: 8/14/1883

    Birthplace: Charleston, S.C.

    Although he was born in the segregated conditions of the South, Ernest Everett Just became one of the most highly respected scientists of his time, graduating magna *** laude from Dartmouth College in 1907, earning a Ph.D. in zoology from the University of Chicago in 1916, and teaching at Howard University in Washington, D.C. from 1909 until his death in 1941. Critical to scientific reputation was his research at the Marine Biology Laboratory in Woods Hole, Massachusetts, beginning in 1909. Just published more than 50 scientific papers based on his 20 years at Woods Hole. In addition, he wrote one of the most important text books of the 20th century, Biology of the Cell Surface (1939). Beginning in 1929, he engaged in an extensive amount of research in Europe, which lasted until his return to the United States in 1940. Having been diagnosed with pancreatic cancer, he died the following year.

  • Anonymous
    1 decade ago

    Benjamin Banneker 1731-1806 astronomer eclipse predicting methods, George Washington Carver 1864-1943 botanist, nitrogen fixation in legumes, 300 new peanut-based products, 118 sweet potato based products, Elijah McCoy 1844-1929 engineer, automatic machinery lubricating cup and 50 other mechanical inventions, Bessie Blount 1914- alive, devices to help amputees, one such device evolved into the mouth-piece that Dr. Stephen Hawking uses today.

  • 1 decade ago

    Peanut butter- George Wahington Carver

    Fridge design- Thomas Elkins

    look up Richard Spikes, he has a list of inventions.

  • Lisa
    Lv 4
    4 years ago

    Tricorn hat. Basically the brim of the hat is folded up in a triangular fashion, at the back and on the left and right sides making one of the gaps between the folded up sides come right at the front.

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  • kayjay
    Lv 4
    1 decade ago

    This will get you started. The second site is better.

    ironing board

    stop lights

    straightening combs

    dough kneader

    Patents can be stolen and credit can be given to someone else. No different in today society.

  • Anonymous
    1 decade ago

    reggae music, wasnt invented by a particular person, but definately a black. DANCEHALL however was definately invented by King JAmmy, althouhg he looks mixed race, i dunno if this counts.

    Rastafarianism was invented by MArcus Garvey i think.


    drums (djembe) and piercings were invented by blacks but because they werent modern i cant name the inventors.

    Tough one but who cares? What are you trying to prove? That black people cant invent things as good as other races?

  • 1 decade ago

    Blood plasma

    Air conditioning

    Traffic light

  • 1 decade ago

    Traffic light? I don't think so:

    Traffic Signal

    Invented by Garrett A. Morgan in 1923? No!

    The first known traffic signal appeared in London in 1868 near the Houses of Parliament. Designed by JP Knight, it featured two semaphore arms and two gas lamps. The earliest electric traffic lights include Lester Wire's two-color version set up in Salt Lake City circa 1912, James Hoge's system (US patent #1,251,666) installed in Cleveland by the American Traffic Signal Company in 1914, and William Potts' 4-way red-yellow-green lights introduced in Detroit beginning in 1920. New York City traffic towers began flashing three-color signals also in 1920.

    Garrett Morgan's cross-shaped, crank-operated semaphore was not among the first half-hundred patented traffic signals, nor was it "automatic" as is sometimes claimed, nor did it play any part in the evolution of the modern traffic light. For details see

    Ironing board?

    Sarah Boone in 1892? No!

    Of the several hundred US patents on ironing boards granted prior to Sarah Boone's, the first three went to William Vandenburg in 1858 (patents #19390, #19883, #20231). The first American female patentee of an ironing board is probably Sarah Mort of Dayton, Ohio, who received patent #57170 in 1866. In 1869, Henry Soggs of Columbus, Pennsylvania earned US patent #90966 for an ironing board resembling the modern type, with folding legs, adjustable height, and a cover. Another nice example of a modern-looking board was designed by J.H. Mallory in 1871, patent #120296.

    Peanut butter is a RECIPE, not an invention.

    Granville Woods prevented railway accidents and saved countless lives by inventing the train telegraph (patented in 1887), which allowed communication to and from moving trains? No!

    The earliest patents for train telegraphs go back to at least 1873. Lucius Phelps was the first inventor in the field to attract widespread notice, and the telegrams he exchanged on the New York, New Haven & Hartford railroad in January 1885 were hailed in the Feb. 21, 1885 issue of Scientific American as "perhaps the first ever sent to and from a moving train." Phelps remained at the forefront in developing the technology and by the end of 1887 already held 14 US patents on his system. He joined a team led by Thomas Edison, who had been working on his "grasshopper telegraph" for trains, and together they constructed on the Lehigh Valley Railroad one of the only induction telegraph systems ever put to commercial use. Although this telegraph was a technical success, it fulfilled no public need, and the market for on-board train telegraphy never took off. There is no evidence that any commercial railway telegraph based on Granville Woods's patents was ever built.

    Frederick Jones (with Joseph Numero) in 1938? No! Did Jones change America's eating habits by making possible the long-distance shipment of perishable foods? No!

    Refrigerated ships and railcars had been moving perishables across oceans and continents even before Jones was born (see refrigerated transport timeline). Trucks with mechanically refrigerated cargo spaces appeared on the roads at least as early as the late 1920s (see the proof). Further development of truck refrigeration was more a process of gradual evolution than radical change.

    It's nice to see so many bad ratings given for proven historical facts. It just goes to show you how threatened people are by the truth.

  • 1 decade ago

    drive-bys, hip hop and rap, and the FUBU clothing line.

  • 1 decade ago

    1. The Blunt

    2. Welfare Fraud

    3. Crack pipe.

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