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Camille Dreyfus
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The merger of two black holes and the gravitational waves that ripple outward as the black holes spiral toward each other. The black holes-which represent those detected by LIGO on Dec. 26, 2015-were 14 and 8 times the mass of the sun, until they merged,
How Do Black Holes Really Work?
Rainbow flag. Sign of diversity, inclusiveness, hope, yearning. Gay pride flag popularized by San Francisco artist Gilbert Baker in 1978. Inspired by Judy Garland singing Over the Rainbow. gay rights, homosexual, gays, LGBT community
13 LGBTQ Writers You Should Read
Bog body. Head of Tollund Man. Died at about age 30-40, Dated to about 280 BCE early Iron Age. Found Bjaeldskovdal bog Denmark in 1950 near Elling Woman. Most well preserved bog body to date. Human remains mummified in natural peat bogs. mummy, embalm
9 Noteworthy Bog Bodies (And What They Tell Us)
Panoramic view at sunrise of moai, Ahu Tongariki, Easter Island (Rapa Nui), Chile
6 Lost Civilizations
Plato (left) and Aristotle, detail from School of Athens, fresco by Raphael, 1508-11; in the Stanza della Segnatura, the Vatican. Plato points to the heavens and the realm of Forms, Aristotle to the earth and the realm of things.
Plato and Aristotle: How Do They Differ?
The tomb of Saint Nicholas in the crypt of the Basilica di San Nicola, Bari, Apulia, Italy
Do the Relics of Saint Nicholas Really Emit a Holy Substance?
Dr. Martin Luther King Jr. addresses marchers during his "I Have a Dream" speech at the Lincoln Memorial in Washington. August 28th 1963
Was Martin Luther King, Jr., a Republican or a Democrat?

Camille Dreyfus

Swiss chemist

Learn about this topic in these articles:

development of cellulose acetate

  • In cellulose acetate

    …two Swiss brothers, Henri and Camille Dreyfus, who during World War I built a factory in England for the production of cellulose diacetate to be used as a nonflammable dope for the coating of fabric airplane wings. After the war, faced with no further demand for acetate dope, the Dreyfus…

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  • linear form of polyethylene
    In major industrial polymers: Cellulose acetate

    …two Swiss brothers, Henri and Camille Dreyfus, who during World War I built a factory in England for the production of cellulose diacetate to be used as a nonflammable “dope” for coating fabric airplane wings. After the war, with no further demand for acetate dope, the Dreyfus brothers turned to…

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