Template:Selected anniversaries/July 18: Difference between revisions
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File:Ralph Hartley.jpg|link=Ralph Hartley (nonfiction)|1960: Electronics researcher [[Ralph Hartley (nonfiction)|Ralph Hartley]] publishes new class of [[Gnomon algorithm functions]] with a wide range of applications in electronic devices used to fight [[crimes against mathematical constants]]. | File:Ralph Hartley.jpg|link=Ralph Hartley (nonfiction)|1960: Electronics researcher [[Ralph Hartley (nonfiction)|Ralph Hartley]] publishes new class of [[Gnomon algorithm functions]] with a wide range of applications in electronic devices used to fight [[crimes against mathematical constants]]. | ||
||1962: Eugene Houdry dies ... mechanical engineer and inventor. Houdry invented catalytic cracking of petroleum feed stocks. Pic. | |||
||1963: Operation Blowdown was an explosives test carried out in the Iron Range jungle of Australia's Cape York Peninsula in 1963, to simulate the effects of a nuclear weapon on tropical rainforest. It was conducted by the Australian Army, the Department of Supply, and the Defence Standards Laboratory with participation from the United Kingdom, Canada and United States. In addition, blast effects on military material, field fortifications, supply points, and foot and vehicle movement were examined in a rain forest environment. | ||1963: Operation Blowdown was an explosives test carried out in the Iron Range jungle of Australia's Cape York Peninsula in 1963, to simulate the effects of a nuclear weapon on tropical rainforest. It was conducted by the Australian Army, the Department of Supply, and the Defence Standards Laboratory with participation from the United Kingdom, Canada and United States. In addition, blast effects on military material, field fortifications, supply points, and foot and vehicle movement were examined in a rain forest environment. | ||
Revision as of 14:29, 16 April 2019
1039: Composer, mathematician, and astronomer Hermann of Reichenau born. He will write a treatise on the science of music, several works on geometry and arithmetic, and astronomical treatises (including instructions for the construction of an astrolabe, then a very novel device in Western Europe).
1853: Physicist and academic Hendrik Lorentz born. He will share the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and theoretical explanation of the Zeeman effect.
1872: In a lecture to the Berlin Academy, mathematician Karl Weierstrass gives the classic example of a continuous nowhere differential function.
1960: Electronics researcher Ralph Hartley publishes new class of Gnomon algorithm functions with a wide range of applications in electronic devices used to fight crimes against mathematical constants.
1966: Human spaceflight: Gemini 10 is launched from Cape Kennedy on a 70-hour mission that includes docking with an orbiting Agena target vehicle.
1967: Engineer, pilot, and alleged time-traveller Henrietta Bolt tells fellow astronauts that Gemini 10 "was an inspiration to us all."
1997: Geologist and astronomer Eugene Merle Shoemaker dies. Shoemaker was the first scientist to conclude that Barringer Meteor Crater in Arizona, and similar craters, were caused by meteor impact.
2016: Violet Spiral 2 used in high-energy literature voted Picture of the Day by the citizens of New Minneapolis, Canada.