Category: Science and Society

pesticides

What Are Pesticides and Are They Really Harmful?

Pesticides are chemicals generally used in agriculture, in order to prevent diseases, pests, weeds and other kinds of plant pathogens. The final aim of pesticides is to maintain high quality in agricultural production and yield and also improve the external appeal of fruits and vegetables. Despite sometimes not being noticed by the public, there some …

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death ray, archimedes

Greek Fire and the Archimedes Death Ray: Could These Ancient Weapons Have Actually Worked?

Legends from antiquity talk of two different weapons used in warfare, Greek fire and the Archimedes death ray. In fact, both of these weapons have been mentioned in some of the popular medieval fantasy books, movies, and television series, like Game of Thrones. But what exactly were these two cool-sounding ancient weapons and could they …

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From Slave to Botanist, Professor, and Inventor: George Washington Carver

Born into slavery in 1864, George Washington Carver used his natural scientific curiosity and the power of education to become one of the leading agricultural scientists of his day. He advocated that southern farmers rotate their crops between cotton, which quickly depletes the soil, and peanuts, which added nitrogen to the soil. His concept of …

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23andMe Will Now Test for Breast Cancer-Causing Genes

23andMe, the DNA-testing kit service, has announced that it will now begin telling customers about the three mutations in the breast-cancer genes BRCA1 and BRCA2 (“Authorization for Direct-to-Consumer Genetic Test on Cancer Risk,” 2018). “Being the first and only direct-to-consumer genetics company to receive FDA authorization to test for cancer risk without a prescription is …

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