STANSW Science Matters - Quarterly Newsletter (2018) STANSW Science Matters - Issue #4 (December) | Page 5

Science Teachers’ Assocation of NSW inc 2018–19 Calendar MONDAY TUESDAY WEDNESDAY 1759, the British Museum in London, world’s oldest public national museum, was opened to small groups, admitted by advance ticket for conducted tours. 14 28 1600, Johannes Kepler arrived in Prague to collaborate with Tycho Brahe, who died Oct 1601, leaving his data & instruments to the mathematically skilled Kepler, resulting in the laws of planetary motion. 4 11 15 16 22 1901 birth of Allen Du Mont, US engineer who perfected the first commercially practical cathode-ray tube; important for much scientific equipment and an essential component of television sets prior to flat screens. 29 17 23 30 5 6 1941, in Oxford, the first injection of penicillin into a human test subject was conducted by Ernst Chain and Howard Florey, who developed this antibiotic. 1912, Robert Millikan began his famous experiment with 58 drops of oil. He earned a 1923 Nobel Prize for measurements of the charge ‘e’ on the electron. 12 13 19 26 24 1957, first use of an external artificial pacemaker coupled with an internal heart electrode; led to the development of the pacemaker industry. 1872 birth of Lafayette B. Mendel, American biochemist, whose discoveries concerning the value of vitamins and proteins helped establish modern concepts of nutrition. 1723 death of Christopher Wren, English architect, mathematician and astronomer, who designed some of London’s most famous buildings. 25 SATURDAY SUNDAY 1633, Galileo, age 68, left Florence, Italy, to face the Inquisition in Rome. By June 1633, he gave in to threats and renounced his belief that the Earth revolved around the Sun. 18 1630 death of Henry Briggs English mathematician who constructed the decimal-based common (Briggsian) logarithms that use base 10. 25 26 1972, the first hand-held scientific calculator marketed. Named HP-35 for having 35 keys, it was the first to perform logarithmic and trigonometric functions with one keystroke. 1880, the steamship SS Strathleven arrived in London with the first successful shipment of frozen mutton from Australia. It had left two months earlier and was a breakthrough, since previous exports of meat had been in tins. 31 1 1932, the neutron was described in an article in Nature by its discoverer, James Chadwick, English physicist who worked with Ernest Rutherford, investigating the structure of the atom. 1865, Gregor Mendel, aged 42, who discovered the basic laws of genetics, read his first scientific paper to the Brünn Society for the study of Natural Sciences in Moravia. 7 14 1968 death of Howard Florey, Australian pathologist, who, with Ernst Chain, researched, isolated and purified penicillin for general clinical use. 20 21 1936 death of Ivan Pavlov, Russian physiologist: 1904 Nobel Prize for his work on the ‘conditioned reflex.’ His famous experiment trained a hungry dog to salivate by associating a bell sound with food. 1953, Crick and Watson first announced the double helix structure of DNA. Their paper, A Structure for Deoxyribose Nucleic Acid, was published in the 25 Apr 1953 issue of Nature. 27 28 — 5 — 19 Australia Day 2006 death of Nicholas Shackleton, English geologist and paleoclimatologist who helped identify carbon dioxide as a greenhouse gas. 1977, deep-ocean researchers discovered extremophile life when the submersible, Alvin, went to the Pacific Ocean floor near the Galapagos and found food chains fed by chemosynthetic energy. 18 FRIDAY 1825 birth of Edward Frankland, English chemist, one of the first researchers in structural chemistry, who became known as the father of valency. 1976, commercial supersonic passenger service began with two simultaneous Concorde jet airplane flights. 21 THURSDAY 1932 birth of Dian Fossey whose life work was to study mountain gorillas in Rwanda. She founded the Karisoke Research Center where she was murdered in 1985, probably by local poachers. 8 1680 death of Jan Swammerdam, Dutch naturalist, known for skilled microscopic observations & accurate illustrations, the first to describe red blood cells in 1658 and observe that muscles change shape but not volume. 15 1903 birth of John Eccles, Australian neurophysiologist, shared 1963 Nobel Prize in Medicine for research on the nerve synapse. 27 2 3 9 1956 death of Meghnad N. Saha, Indian astrophysicist noted for the thermal ionisation equation, which, in the form perfected by E. Arthur Milne, has remained fundamental in all work on stellar atmospheres. 10 1869, Dmitri Mendeleev worked with a set of cards to make a systematic arrangement of chemical elements. His result, copied onto a document dated today, became the Periodic Table. 16 17 1955 birth of Steve Jobs who co-founded Apple computers. 1946, Selman A. Waksman announced his discovery of the antibiotic streptomycin, the first effective antibiotic specific against tuberculosis. 22 20 23 Science dates compiled by Sue Siwinski 24