Template:Selected anniversaries/April 18: Difference between revisions
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||1674: John Graunt dies one of the first demographers, though by profession he was a haberdasher. Pic. | ||1674: John Graunt dies one of the first demographers, though by profession he was a haberdasher. Pic. | ||
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||1849: Adolf Slaby born ... electronics pioneer. Pic. | ||1849: Adolf Slaby born ... electronics pioneer. Pic. | ||
File:Justus von Liebig circa 1866.jpg|link=Justus von Liebig (nonfiction)|1873: Chemist and academic [[Justus von Liebig (nonfiction)|Justus von Liebig]] dies. Von Liebeg made pioneering contributions to organic chemistry, especially agricultural and biological chemistry; he is known as the "Father of the fertilizer industry". | File:Justus von Liebig circa 1866.jpg|link=Justus von Liebig (nonfiction)|1873: Chemist and academic [[Justus von Liebig (nonfiction)|Justus von Liebig]] dies. Von Liebeg made pioneering contributions to organic chemistry, especially agricultural and biological chemistry; he is known as the "Father of the fertilizer industry". | ||
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||1892: Eugene Houdry born ... mechanical engineer and inventor. Houdry invented catalytic cracking of petroleum feed stocks. Pic. | ||1892: Eugene Houdry born ... mechanical engineer and inventor. Houdry invented catalytic cracking of petroleum feed stocks. Pic. | ||
||1892: Dmitrii Menshov born ... mathematician known for his contributions to the theory of trigonometric series. Pic search (fierce). | ||1892: Dmitrii Menshov born ... mathematician known for his contributions to the theory of trigonometric series. Pic search (fierce). | ||
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File:John Ambrose Fleming 1890.png|link=John Ambrose Fleming (nonfiction)|1945: Electrical engineer and physicist [[John Ambrose Fleming (nonfiction)|John Ambrose Fleming]] dies. Fleming invented the thermionic valve, also known as the vacuum tube. | File:John Ambrose Fleming 1890.png|link=John Ambrose Fleming (nonfiction)|1945: Electrical engineer and physicist [[John Ambrose Fleming (nonfiction)|John Ambrose Fleming]] dies. Fleming invented the thermionic valve, also known as the vacuum tube. | ||
File:Albert Einstein 1921.jpg|link=Albert Einstein (nonfiction)|1955: Physicist, engineer, and academic [[Albert Einstein (nonfiction)|Albert Einstein]] dies. Einstein developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). | File:Albert Einstein 1921.jpg|link=Albert Einstein (nonfiction)|1955: Physicist, engineer, and academic [[Albert Einstein (nonfiction)|Albert Einstein]] dies. Einstein developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). |
Revision as of 19:07, 26 January 2022
1796: Physicist Johan Carl Wilcke dies. Wilcke invented the electrophorus, and calculated the latent heat of ice.
1873: Chemist and academic Justus von Liebig dies. Von Liebeg made pioneering contributions to organic chemistry, especially agricultural and biological chemistry; he is known as the "Father of the fertilizer industry".
1907: Jazz drummer and theoretical physicist Albert Einstein hosts an all-star benefit concert to raise money for the rebuilding of San Francisco.
1945: Electrical engineer and physicist John Ambrose Fleming dies. Fleming invented the thermionic valve, also known as the vacuum tube.
1955: Physicist, engineer, and academic Albert Einstein dies. Einstein developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).
2011: Mathematician Curt Meyer dies. Meyer made notable contributions to number theory, including an alternative solution to the class number 1 problem, building on the original Stark–Heegner theorem.
2018: Signed first edition of Purple Racer unexpectedly develops artificial intelligence after being exposed to Cherenkov radiation during an unauthorized experiment in high-energy literature.