Surprise ! Il suffit de 6 atomes pour obtenir un superfluide quantique futura-sciences.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from futura-sciences.com Daily Mail and Mail on Sunday newspapers.
François and Georgine Diederich at UCLA in 2019. Image credit: Penny Jennings (University of California, Los Angeles, CA).
A proud native of Luxembourg, Diederich became known the world over both for his chemical discoveries and for his warm, lively, and interactive personality. Educated first in Luxembourg and then earning his diploma and doctorate at the University of Heidelberg, Germany with Heinz Staab, Diederich gained early fame for the first synthesis in 1978 of a hydrocarbon that Staab had named “Kekulene” to honor the discoverer of the structure of benzene.
Kekulene, containing 12 fused benzene rings in a planar circular structure, was resynthesized and studied by single-molecule imaging in 2019, and found to have the structural details predicted by Diederich and Staab. By conquering the synthesis of this molecule, Diederich became enamored of carbon-rich molecules that he studied throughout his career.
By Reuters Staff
11 Min Read
With the number of coronavirus deaths in the United States surpassing 300,000, social media posts claim, “A virus DID NOT kill 300,000 Americans. Old age did. Pharmaceuticals did. Processed foods did. Pesticides did. Hospitals & Ventilators did. Lack of proper nutrition, sunlight & exercise did.” Some of these things can contribute to pre-existing conditions that make serious illness from COVID-19 more likely. These deaths, however, were triggered by the novel coronavirus.
Reuters Fact Check. REUTERS
Social media posts making this claim can be found here , here and here .
As stated here on the Centers for Disease Control and Prevention’s (CDC) “Provisional Death Counts for Coronavirus Disease 2019 (COVID-19)” page, COVID-19 was the only cause mentioned for 6% of recorded U.S. coronavirus deaths. In other words, more than 16,500 of the more than 276,061 processed death certificates included in the CDC’s provisional death count had only C
History Happenings
Alexander Lippisch is shown in a clip from the 1955 University of Iowa film, “Secret of Flight.” The 57-minute film is on YouTube along with several newsreel clips of aircraft he designed. A search for his name yields a treasure trove of videos. (University of Iowa)
Alexander Lippisch (left), designer of the first German jet, in 1953 presents a picture of the Wright Brothers’ first flight to Donald Hines, chairman of the Cedar Rapids Airport Commission. The Wrights began experimenting with flight when growing up in Cedar Rapids, and Lippisch said he drew inspiration from seeing Orville Wright fly his airplane in 1908 during Wright’s European tour showing off his and his brother’s invention. (Gazette archives)
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