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490 results for “sharpgrain”
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In 1831, Michael Faraday investigated Chladni figures and discovered the related phenomenon, standing waves. #Poetry #Science #History #Acoustics #StandingWaves #Faraday (https://sharpgiving.com/thebookofscience/items/p1831c.html)
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In 1851, George Gabriel Stokes defined a fundamental measure in fluid dynamics, the Reynolds number. #Poetry #Science #History #FluidDynamics #ReynoldsNumber #Stokes (https://sharpgiving.com/thebookofscience/items/p1851b.html)
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In 1856, William Henry Perkin accidentally discovered the first synthetic dye and named it mauveine. He was trying to synthesize quinine from coal-tar distillates. #Poetry #Science #History #Chemistry #Mauveine #Perkin (https://sharpgiving.com/thebookofscience/items/p1856m.html)
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In 1735 George Hadley published his theory of the causes of the trade winds, involving heat at the equator and the rotation of the earth. #Poetry #Science #History #Atmosphere #Tradewinds #Hadley (https://sharpgiving.com/thebookofscience/items/p1735t.html)
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In 1814, Joseph von Fraunhofer discovered that each element produces different spectral lines. #Poetry #Science #History #Chemistry #Physics #Spectroscope #Fraunhofer (https://sharpgiving.com/thebookofscience/items/p1814.html)
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In 1884, Marcellus Gilmore Edson patented peanut butter, not that it hadn’t been made centuries before. #Poetry #Science #History #FoodScience #PeanutButter #Edson (https://sharpgiving.com/thebookofscience/items/p1884.html)
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1922,1926: Baltzar von Platen & Carl Munters invented the absorption refrigerator (with no moving parts). #Poetry #Science #History #Thermodynamics #Refrigeration (https://sharpgiving.com/thebookofscience/items/p1922c.html)
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1896,1902 - Magnetic detector - The book of science - In 1896, Ernest Rutherford invented the magnetic radio-signal detector that Guglielmo Marconi developed in 1902. #Poetry #Science #History #Electromagnetism #Radio #Rutherford #Marconi (https://sharpgiving.com/thebookofscience/items/p1896d.html)
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In 1896, Guglielmo Marconi invented the first practical, long-range radio for transmitting Morse code. #Poetry #Science #History #Electromagnetics #MorseCode #Marconi (https://sharpgiving.com/thebookofscience/items/p1896b.html)
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Other grains than corn can be popped (and should???): https://www.treehugger.com/how-cook-any-whole-grain-popcorn-4858738
#treehugger #food #cooking #grain #grains #popping #quinoa #rice #barley #pearlbarley #arboriorice #rice #shortgrainbrownrice #brownrice #buckwheat #melissabreyer
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In 1859, Robert Bunsen and Gustav Kirchhoff correlated elements and chemicals with the absorption and emission lines in their spectrums to establish the basis of analytical spectroscopy. #Poetry #Science #History #Chemistry #Spectroscopy #Bunsen #Kirchhoff (https://sharpgiving.com/thebookofscience/items/p1859b.html)
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In 1873, Josiah Willard Gibbs defined the energy potential of thermodynamic systems. #Poetry #Science #History #Thermodynamics #Gibs (https://sharpgiving.com/thebookofscience/items/p1873d.html)
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In 1905, Karl Ferdinand Braun showed how an array of antennas can adjust their phases to aim a radio broadcast, also used today for advanced radar systems. #Poetry #Science #History #Electromagnetism #PhasedArray #Braun (https://sharpgiving.com/thebookofscience/items/p1905b.html)
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In 1803, Louis-Bernard Guyton de Morveau calibrated his platinum pyrometer with a mercury thermometer and compared its results to the Wedgwood scale. #Poetry #Science #History #Thermometry #Pyrometer #Guyton (https://sharpgiving.com/thebookofscience/items/p1803c.html)
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In 1878, Walther Flemming described chromosomes and cell division. #Poetry #Science #History #Biology #Chromosomes #Cells #Flemming (https://sharpgiving.com/thebookofscience/items/p1878b.html)
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In 1878, Samuel Pierpont Langley invented the bolometer, capable of measuring thermal radiation from any distance. #Poetry #Science #History #Thermometry #Bolometer #Pierpont (https://sharpgiving.com/thebookofscience/items/p1878f.html)
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In 1871, Carl William Siemens proposed using platinum for the sensing element of a resistance thermometer. #Poetry #Science #History #Thermometry #Thermometer #Siemens (https://sharpgiving.com/thebookofscience/items/p1871b.html)
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In 1724, Daniel Gabriel Fahrenheit created the temperature scale that is named after him and is still popular today. #Poetry #History #Science #Thermometry #Fahrenheit (https://sharpgiving.com/thebookofscience/items/p1724.html)
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In 1661, Robert Boyle published the principles on which chemistry would be distinguished from alchemy. #Science #History #Poetry #Chemistry #RobertBoyle (https://sharpgiving.com/thebookofscience/items/p1661.html)
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In 1885, Eduard Suess showed how the continuity of mountains on southern continents meant that they were once a single supercontinent. #Poetry #Science #History #Geophysics #Supercontinent #Suess (https://sharpgiving.com/thebookofscience/items/p1885.html)
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In 1756, Franz Ulrich Theodor Aepinus demonstrated pyroelectricity—tourmaline produces an electric field when heated. #Poetry #Science #History #Pyroelectricity #Aepinus (https://sharpgiving.com/thebookofscience/items/p1756.html)
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In 1756, Franz Ulrich Theodor Aepinus demonstrated pyroelectricity—tourmaline produces an electric field when heated. #Poetry #Science #History #Pyroelectricity #Aepinus (https://sharpgiving.com/thebookofscience/items/p1756.html)
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In 1756, Franz Ulrich Theodor Aepinus demonstrated pyroelectricity—tourmaline produces an electric field when heated. #Poetry #Science #History #Pyroelectricity #Aepinus (https://sharpgiving.com/thebookofscience/items/p1756.html)
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In 1898, Santiago Ramón y Cajal proved that the nervous system is made of separate, multi-branched cells, not fused together as Camillo Golgi and others had argued. #Poetry #Science #History #Neuroscience #Cajal (https://sharpgiving.com/thebookofscience/items/p1889a.html)
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In 1924, Jean Piaget established his theory of child development. #Poetry #Science #History #Psychology #Piaget (https://sharpgiving.com/thebookofscience/items/p1924.html)
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In 1925, Édouard Chatton distinguished prokaryote from eukaryote cell types. #Poetry #Science #History #Biology #Prokaryote #Eukaryote #Chatton (https://sharpgiving.com/thebookofscience/items/p1925e.html)