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African-American Vernacular English [a] ( AAVE) [b] is the variety of English natively spoken, particularly in urban communities, by most working - and middle-class African Americans and some Black Canadians. [4] Having its own unique grammatical, vocabulary, and accent features, AAVE is employed by middle-class Black Americans as the more ...
First African-American woman to earn a PhD in physics (University of Michigan Ann Arbor 1972) on vibrational analysis of secondary chlorides Morgan, Garrett: 1877–1963 Inventor Invented an early version of a gas mask called a smoke hood, and created the first traffic light that included a third "warning" position which is standard today ...
The Royal purple or Imperial purple was probably used until the time of Augustine of Hippo (354–430) and before the demise of the Roman Empire. Dye chemistry [ edit ] Variations in colours of "Tyrian purple" from different snails are related to the presence of indigo dye (blue), 6-bromoindigo (purple), and the red 6,6'-dibromoindigo.
The sculpture was created by Helen Wilson-Roe and was the first statue of a black woman made by a black woman for a public space in the United Kingdom. [69] On October 13, 2021, the World Health Organization (WHO) presented the Director General Award to Lawrence Lacks, the son of Henrietta Lacks, in recognition of her unknowing contribution to ...
Hungarian-American MIT inventor Mária Telkes and American architect Eleanor Raymond created, in 1947, the Dover Sun House, the first house powered by solar energy. Wrinkle-free fiber. Wrinkle-free fiber invented by Ruth R. Benerito The invention was said to have "saved the cotton industry".
A lot of these terms and phrases aren't necessarily exclusive to Black communities; they're accessed and adopted by a wide range of folks. But when this language gets reused by non-Black people ...
Purple is a color similar in appearance to violet light. In the RYB color model historically used in the arts, purple is a secondary color created by combining red and blue pigments. In the CMYK color model used in modern printing, purple is made by combining magenta pigment with either cyan pigment, black pigment, or both.
t. e. Women in computing were among the first programmers in the early 20th century, and contributed substantially to the industry. As technology and practices altered, the role of women as programmers has changed, and the recorded history of the field has downplayed their achievements. Since the 18th century, women have developed scientific ...