#AdventuresInHistory!
#OTD #TDIH #February11, 1868: #LeonFoucault, French physicist and academic, best known for his 1868 demonstration of the #FoucaultPendulum, credited with naming the #gyroscope (though he did not invent it) (b. September 18, 1819) #dies.
en.wikipedia.org/wiki/L%C3%A9...
![#JeanBernard #Leonfoucault #museumscienceindustry @msichicago In 1850, he did an experiment using a rotating mirror to measure the speed of light; it was viewed as "driving the last nail in the coffin" of Newton's corpuscular theory of light when it showed that light travels more slowly through water than through air.[4] In 1851, he provided an experimental demonstration of the rotation of the Earth on its axis (diu](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:p5x6hod3beon6yzicchzwsky/bafkreifsim4dvaqdz5i4lo7yv4nuqtupiiyo2msehvcxnshspidhgdyo5a)
#JeanBernard #Leonfoucault #museumscienceindustry @msichicago In 1850, he did an experiment using a rotating mirror to measure the speed of light; it was viewed as "driving the last nail in the coffin" of Newton's corpuscular theory of light when it showed that light travels more slowly through water than through air.[4] In 1851, he provided an experimental demonstration of the rotation of the Earth on its axis (diu
#JeanBernard #Leonfoucault #museumscienceindustry @msichicago In 1850, he did an experiment using a rotating mirror to measure the speed of light; it was viewed as "driving the last nail in the coffin" of Newton's corpuscular theory of light when it vrth on its axis (diu
