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Sergio Santos Mendes (Portuguese pronunciation: ['seRZju 'satuZ 'medZiS]; born February 11, 1941) is a Brazilian musician. He has over 55 releases, and plays bossa nova heavily crossed with jazz and funk. He was nominated for an Academy Award for Best Original Song in 2012 as co-writer of the song "Real in Rio" from the animated film Rio. Mendes is married to Gracinha Leporace, who has performed with him since the early 1970s.
Mendes' career in the U.S. stalled in the mid-1970s, but he remained very popular in South America and Japan. His two albums with Bell Records in 1973 and 1974 followed by several for Elektra from 1975 on, found Mendes continuing to mine the best in American pop music and post-Bossa writers of his native Brazil, while forging new directions in soul with collaborators like Stevie Wonder, who wrote Mendes' R&B-inflected minor hit, "The Real Thing."  In 1983, he rejoined Alpert's A&M records and enjoyed huge success with a self-titled album and several follow-up albums, all of which received considerable adult contemporary airplay with charting singles. "Never Gonna Let You Go", featuring vocals by Joe Pizzulo and Leza Miller, equalled the success of his 1968 single "The Look of Love" by reaching No. 4 on the Billboard Hot 100 chart; it also spent four weeks atop the Billboard adult contemporary chart. In 1984 he recorded the Confetti album, which had the hit songs "Olympia", which was also used as a theme song for the Olympic games that year and "Alibis". The '80s also found Mendes working with singer Lani Hall again on the song "No Place to Hide" from the Brasil '86 album, and as producer of her vocals on the title song for the James Bond film Never Say Never Again.  By the time Mendes released his Grammy-winning Elektra album Brasileiro in 1992, he was the undisputed master of pop-inflected Brazilian jazz. The late-1990s lounge music revival brought retrospection and respect to Mendes' oeuvre, particularly the classic Brasil '66 albums.
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he was the undisputed master of pop-inflected Brazilian jazz.


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John Logie Baird FRSE (; 13 August 1888 - 14 June 1946) was a Scottish engineer, innovator, one of the inventors of the mechanical television, demonstrating the first working television system on 26 January 1926, and inventor of both the first publicly demonstrated colour television system, and the first purely electronic colour television picture tube. In 1928 the Baird Television Development Company achieved the first transatlantic television transmission. Baird's early technological successes and his role in the practical introduction of broadcast television for home entertainment have earned him a prominent place in television's history.
Baird made many contributions to the field of electronic television after mechanical systems had taken a back seat. In 1939, he showed a system known today as hybrid colour using a cathode ray tube in front of which revolved a disc fitted with colour filters, a method taken up by CBS and RCA in the United States.  As early as 1940, Baird had started work on a fully electronic system he called the "Telechrome". Early Telechrome devices used two electron guns aimed at either side of a phosphor plate. The phosphor was patterned so the electrons from the guns only fell on one side of the patterning or the other. Using cyan and magenta phosphors, a reasonable limited-colour image could be obtained. He also demonstrated the same system using monochrome signals to produce a 3D image (called "stereoscopic" at the time). In 1941, he patented and demonstrated this system of three-dimensional television at a definition of 500 lines. On 16 August 1944, he gave the world's first demonstration of a practical fully electronic colour television display. His 600-line colour system used triple interlacing, using six scans to build each picture. Similar concepts were common through the 1940s and 50s, differing primarily in the way they re-combined the colours generated by the three guns. One of them, the Geer tube, was similar to Baird's concept, but used small pyramids with the phosphors deposited on their outside faces, instead of Baird's 3D patterning on a flat surface.  In 1943, the Hankey Committee was appointed to oversee the resumption of television broadcasts after the war. Baird persuaded them to make plans to adopt his proposed 1000-line Telechrome electronic colour system as the new post-war broadcast standard. The picture resolution on this system would have been comparable to today's HDTV (High Definition Television). The Hankey Committee's plan lost all momentum partly due to the challenges of postwar reconstruction. The monochrome 405-line standard remained in place until 1985 in some areas, and the 625-line system was introduced in 1964 and (PAL) colour in 1967. A demonstration of large screen three-dimensional television by the BBC was reported in March 2008, over 60 years after Baird's demonstration.
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did he face any other challenges?

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