George Washington (1July 864, 12- 19431October, 65438+5) is an American educator, agricultural chemist and botanist. He was the first black man to enter Iowa State University and get a master's degree in agriculture.

He is engaged in agricultural research, which has achieved fruitful results and made great contributions to society. He extracted more than 300 kinds of by-products from sweet potatoes and peanuts, including plastics, dyes, medicines, flour, milk powder, wood lacquer and chemical fertilizer. His in-depth study of soil utilization and diseases and insect pests promoted economic innovation in the southern United States.

His laboratory research results and products are world-famous. He first arranged a day for small farmers to go to Tastigi College to learn how to make the soil fertile. Considering that some people can't go to school, Carver pioneered the "automobile school". This practice of universities going to the countryside was later widely adopted by the US Department of Agriculture and other countries.

2. Benjamin Banneker

Benjamin Banneker Benjamin Banneker (173 1- 1806) is an American mathematician, astronomer and inventor. The first black man appointed by the president of the United States. George Washington once asked him to participate in the "District of Columbia Working Committee" and explore the new capital. 179 1 made a wooden clock, and the time was very accurate. 1773 started astronomical calculation and accurately predicted the solar eclipse of 1789.

3. May Jemison

Female astronaut Mae C. Jemison. Then moved to Chicago, Illinois. I like modern jazz and African dance. Parents live in Chicago.

Jemison has only experienced space activities once. 1992 September 12, she took off on the space shuttle Endeavour and participated in the space flight numbered STS-47. She was accompanied by a pair of astronauts, Li Pingbin and Jane Davies.

The flight lasted 8 days, circled the Earth 127 times, with a voyage of 5.3 million kilometers, and completed 44 experimental tasks of life science and material manufacturing in the space laboratory.

4. glanville T Woods

Glanville T Woods is also called Black Edison because his invention is very similar to Edison's. He was born in1April 23rd, 856. He mainly devoted himself to creating inventions to improve the railway industry.

He invented a machine combining telegraph and telephone, which was later called telegraph. He improved the design of many vehicles and was praised for inventing the third track. He also made many improvements to the steam boiler.

5. Mary Maynard

192 1 was born in new york. From the beginning, she was very interested in books, and her father's love for science even inspired her. She was the first black woman to receive a doctorate. In chemistry. For seven years, she devoted herself to studying protein in human body, and then she studied the chemicals involved in the mechanism of heart attack.

She is also engaged in biomechanical research, studying the effects of aging on the circulatory system. 1999, she was named as one of the 50 women in science.

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