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| NEWSLETTER - DECEMBER 7 | |
| Before you look at today's web page, see if you can answer some of these questions about the events that happened on this day. Some of the names are very familiar. Others will likely stump you. Tickle your curiosity with these questions, then check your answers on today's web page. | |
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| Quotations for Today | |
| "Die ganzen Zahlen hat der liebe Gott gemacht, alles andere ist Menschenwerk (The dear God has made the whole numbers, all the rest is man's work." - Leopold Kronecker, German mathematician (born 7 Dec 1823) | |
| QUIZ | |
| Births | |
| Richard Brooke Roberts, born 7 Dec 1910, was an American biophysicist who contributed most to the discovery of "delayed neutrons" that are crucial in the operation of a fission reactor which Without the margin of safety provided by the delayed neutrons, nuclear reactors might not be practical at all What are delayed neutrons? | |
| Deaths | |
| Walter Karl Friedrich Noddack (1893-1960) was a German chemist who discovered an rhenium (Jun 1925) in collaboration with his wife Ida Tacke. Since 1922, he had searched for undiscovered elements. After three years, the careful fractionation of certain ores yielded the new element, a rare heavy metallic element that resembles manganese. Named after a river in his homeland, it was the last stable element to be discovered. What is this element? | |
| Events | |
| On 7 Dec of a certain year, the first execution by lethal injection in the U.S. was performed on Charles Brooks in Texas. Several intravenous drips provide an anesthetic, followed by a chemical to paralyse breathing, and another to stop the heart. In which decade was this execution? | |
| On 7 Dec 1909, Leo Baekeland received the first U.S. patents for a thermosetting artificial plastic - "an improvement in methods of making insoluble condensation products of phenol-formaldehyde" - commonly referred to as the "heat and pressure" patent. This gave birth to the modern plastics industry. What name did he give this plastic? | |
| On 7 Dec 1889, a Scottish inventor, was issued a patent for his pneumatic tyre. In 1887, when his 9-yr-old son complained of the rough ride he experienced on his tricycle over the cobbled streets of Belfast. His name is still known as a manufacturer tyres. Can you name this inventor? | |
| Answers | |
| When you have your answers ready to all the questions above, you'll find all the information to check them, and more, on the December 7 web page of Today in Science History. Or, try this link first for just the brief answers. | |
| Fast answers for the previous newsletter for December 6: cryolite, Greenland; Law of Combining Volumes - that when gases combine their relative volumes bear a simple numerical relation to each other; telegraph industry; carbon dioxide; graphite pencil; the decade containing the year 1945. | |
| Feedback | |
| If you enjoy this newsletter, the website, or wish to offer encouragement or ideas, please write. |
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