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| NEWSLETTER - JULY 29 |
| Before you look at today's web page, see if you can answer some of these questions about the events that happened on July 29. 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. |
| Quotations for Today |
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| QUIZ |
| Births |
| Baron Marcel Bich, born 29 Jul 1914, was a French inventor who built his business empire by creating throwaway items. What was his first invention? |
| Walter Hunt, born 29 July 1796, began inventing with a machine to spin flax, and then a fire engine gong, a forest saw, a stove that burned hard coal. His inventions worked, but he just did not have the knack for making money from them. In 1849, Hunt made a familiar item out of a piece of brass wire about eight inches long, coiled at the center and shielded at one end. He patented his invention as a "dress pin", and sold the rights to it for four hundred dollars. What is his dress pin now known as? |
| Deaths |
| Dorothy Hodgkin (1910-1994) was awarded the Nobel Prize for Chemistry in 1964 for her discoveries of the structure of biologically important molecules, including penicillin, vitamin B-12, and insulin. What method did she use to determine these structures? |
| John Alexander Newlands (1837-1898) was a British chemist who first established an order of elements by the atomic weights, and observed a periodicity in the properties. Every eighth element has similar properties. It took another quarter century, and the work of others, such as Mendeleev, for the significance of Newland's "law" to be recognized. What name is used for Newland's law? |
| Events |
| On 29 Jul 1927, the first electric respirator was installed at Bellevue hospital in New York for the post war polio epidemic. It was developed at Harvard University by Phillip Drinker and Louis Agassiz Shaw built with two vacuum cleaners. The negative pressure machine surrounds the patient's body except for the head, and alternates a negative atmospheric pressure with the ambient one, resulting in rhythmic expansion of the chest cage (and thus inhalation). This type of machine is rarely used today. What was the new respirator called? |
| On 29 Jul of a certain year, the first transcontinental airmail flight relay from New York to San Francisco occurred. This was a dangerous occupation: 31 of the first 40 pilots hired to fly mail were killed in crashes. In what decade did this first transcontinental airmail flight relay take place? |
| 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 July 29 web page of Today in Science History. Or, try this link first for just the brief answers. |
| Fast answers for the previous newsletter for July 28: 35,800 ft; plastic, airtight food storage containers; birds; potato; the decade including the year 1858. |
| Feedback |
| If you enjoy this newsletter, the website, or wish to offer encouragement or ideas, please write. |
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