Wikipedia:Main Page history/2021 December 27b
From today's featured articleSesame Street research concerns the children's television show Sesame Street, which premiered in 1969. Unlike earlier children's programming, producers used research and more than 1,000 studies and experiments to create the show and test its impact on its young viewers' learning. By the end of the program's first season, the organization founded to oversee Sesame Street production, Children's Television Workshop (CTW), had developed what came to be called the "CTW model": a system of planning, production, and evaluation that combined the expertise of researchers and early childhood educators with that of the program's writers, producers, and directors. CTW utilized independent summative evaluations conducted by the Educational Testing Service during the show's first two seasons to measure the program's educational effectiveness. Based on these findings, the researchers compiled a body of data and the producers changed the show accordingly. The formative research on Sesame Street was the first time children's television viewing was studied scientifically. (Full article...)
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The men's individual time trial event at the UCI Road World Championships is the men's world championship for the road bicycle racing discipline of time trial. Introduced in 1994 by the Union Cycliste Internationale (UCI), the world's governing body of cycling, the event consists of a time trial covering a distance of approximately 45 kilometres (28 mi) over flat or rolling terrain. Riders start separated by two-minute intervals; the one that completes the course in the shortest time is the winner, and is entitled to wear the rainbow jersey (pictured) in time trial events for the forthcoming season. Switzerland's Fabian Cancellara (2006, 2007, 2009 and 2010) and Germany's Tony Martin (2011, 2012, 2013 and 2016) have won the most competitions with four each. Australia's Michael Rogers (2003, 2004 and 2005) comes in next in terms of victories, with three wins; Rogers and Martin are the only people to take 3 wins in successive years. The current male champion is Italian rider Filippo Ganna, who won the 2021 event. (Full list...)
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The south-western black rhinoceros (Diceros bicornis occidentalis) is a subspecies of the black rhinoceros found primarily in Namibia. The chief threat it faces is from illegal poaching for its valuable horn. It is listed as near threatened by the International Union for Conservation of Nature. The total population is increasing, and numbered 1,920 animals in 2010. This female south-western black rhinoceros was photographed in Etosha National Park, Namibia. Photograph credit: Charles James Sharp
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