{"id":3503,"date":"2023-11-02T05:22:33","date_gmt":"2023-11-01T23:52:33","guid":{"rendered":"https:\/\/adultserviceau.com.au\/blog\/heritage-november-2023-scientific-american\/"},"modified":"2023-11-02T05:22:33","modified_gmt":"2023-11-01T23:52:33","slug":"heritage-november-2023-scientific-american","status":"publish","type":"post","link":"https:\/\/adultserviceau.com.au\/blog\/heritage-november-2023-scientific-american\/","title":{"rendered":"Heritage: November 2023 &#8211; Scientific American"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div>\n<h2>1973<\/h2>\n<p><strong>Mayan Astronomers Predicted Eclipses<\/strong><\/p>\n<p>\u201cThe Maya have been competent naked-eye astronomers. It now appears that they could even forecast eclipses of the sunlight. That is the conclusion of a new assessment of the \u2018Venus Table\u2019 and the \u2018Lunar Table\u2019 contained in the Maya ebook the Dresden Codex. Calculating in multiples of their own 260-day \u2018sacred 12 months,\u2019 Maya astronomers surface to have detected two unique sorts of periodicity in the recurrence of eclipses: a \u2018short\u2019 interval of 9,360 days (36 sacred a long time) and a \u2018long\u2019 interval of 11,960 times (46 sacred years). For photo voltaic eclipses seen in Central The usa, the table would have supplied satisfactory predictions from A.D. 42 to 886.\u201d<\/p>\n<p><strong>Sourdough Microorganisms<\/strong><\/p>\n<p>\u201cEarly prospectors in the American West carried the components of a really acidic bread that acquired them the name \u2018sourdoughs.\u2019 The bread is now baked commercially in San Francisco, but only a short while ago was the organism liable for its characteristic sourness recognized. Leo Kline and T. F. Sugihara of the U.S. Office of Agriculture observed a fortuitous combination of a yeast\u2014<em>Saccharomyces exiguus<\/em>\u2014and a bacterium, seemingly of the genus <em>Lactobacillus.<\/em> For immediate progress the microorganisms require the sugar maltose, from which they create lactic acid and acetic acid, which account for the bitter taste. The yeast is tolerant of this acidic environment, and it ferments carbs other than maltose to generate the carbon dioxide that leavens the bread. The title proposed for the new species is <em>Lactobacillus sanfrancisco.<\/em>\u201d<\/p>\n<h2>1923<\/h2>\n<p><strong>Anesthesia From Sleeping Flowers<\/strong><\/p>\n<p>\u201cAs far back again as 1908 florists complained that carnations when positioned in greenhouses would go to rest, and those which had not opened would fail to do so, leading to terrific loss in their organization. Investigation proved that ethylene from leaky gasoline fixtures was the lead to. This led Dr. Luckhardt and Mr. Carter of the University of Chicago not long ago to take a look at the fuel as an anesthetic. The gasoline was tried to start with on numerous animals. The experimenters then experimented with it on themselves. They explain the impact of the gas mixed with oxygen as offering a perception of properly-getting. They became unconscious and then recovered. Many learners then volunteered. Topics had pins thrust through their arms, and ended up pinched seriously plenty of to depart black and blue areas. It is claimed that the new anesthetic provides reduction of sensation with out any signal of asphyxia, shortness of breath or influence on the blood stress. The only after-influence was slight weak point and slight nausea.\u201d<\/p>\n<p><strong>No Neutrons (However)<\/strong><\/p>\n<p>\u201cWe have slowly learnt that electrical energy exists in two varieties, the detrimental variety, which is identified as an electron, and the optimistic sort, which is now starting to be named a proton. The product universe seems to be constructed of these two features. Equally the electron and the proton are quite a great deal lesser than an atom of make a difference. Equally most likely have fat, though the proton weighs as much as 1,830 electrons. But it is not appreciably greater. The truth is, we do not know much about it. No matter whether the proton is an final unit, or no matter if it can be solved into a near-packed assemblage of more simple elements, which would account for its impressive excess weight or massiveness, stays for future discovery.\u201d<\/p>\n<h2>1873<\/h2>\n<p><strong>Can Birds Sense Cholera?<\/strong><\/p>\n<p>\u201cIt is probable that birds, in some method, turn out to be conscious of cholera infection in the air. Modern European journals point out that at Munich, where numerous instances of cholera have occurred, the rooks and crows, which flew about the steeples and through the trees of the community promenades, have all emigrated. The similar factor occurred during the cholera seasons of 1836 and 1854. The same phenomena happened at Mauritius, exactly where the martins, which exist in huge quantities the year spherical, wholly disappeared through the prevalence of the cholera.\u201d<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"Covers of Scientific American from November 1973, 1923 and 1873.\" height=\"580\" src=\"https:\/\/static.scientificamerican.com\/sciam\/assets\/Image\/2023\/historyCovers1123.jpeg\" width=\"1200\"\/><\/p>\n<\/div>\n<p>[ad_2]<br \/>\n<br \/><a href=\"https:\/\/www.scientificamerican.com\/article\/history-november-2023\/\">Resource hyperlink <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] 1973 Mayan Astronomers Predicted Eclipses \u201cThe Maya have been competent naked-eye astronomers. It now appears that they could even forecast eclipses of the sunlight. That is the conclusion of&hellip;<\/p>\n","protected":false},"author":1,"featured_media":3504,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[],"class_list":["post-3503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sexting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Heritage: November 2023 - Scientific American - Adult Guest Blog Posting Website for Australia - Adultserviceau.com.au<\/title>\n<meta name=\"description\" content=\"1973 Mayan Astronomers Predicted Eclipses \u201cThe Maya have been competent naked-eye astronomers. 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