input: Some of Baird's early inventions were not fully successful. In his twenties he tried to create diamonds by heating graphite and shorted out Glasgow's electricity supply. Later Baird invented a glass razor, which was rust-resistant, but shattered. Inspired by pneumatic tyres he attempted to make pneumatic shoes, but his prototype contained semi-inflated balloons, which burst. He also invented a thermal undersock (the Baird undersock), which was moderately successful. Baird suffered from cold feet, and after a number of trials, he found that an extra layer of cotton inside the sock provided warmth. Baird's numerous other developments demonstrated his particular talent at invention. He was a visionary and began to dabble with electricity. In 1928, he developed an early video recording device, which he dubbed Phonovision. The system consisted of a large Nipkow disk attached by a mechanical linkage to a conventional 78-rpm record-cutting lathe. The result was a disc that could record and play back a 30-line video signal. Technical difficulties with the system prevented its further development, but some of the original phonodiscs have been preserved, and have since been restored by Donald McLean, a Scottish electrical engineer. Baird's other developments were in fibre-optics, radio direction finding, infrared night viewing and radar. There is discussion about his exact contribution to the development of radar, for his wartime defence projects have never been officially acknowledged by the UK government. According to Malcolm Baird, his son, what is known is that in 1926 Baird filed a patent for a device that formed images from reflected radio waves, a device remarkably similar to radar, and that he was in correspondence with the British government at the time. The radar contribution is in dispute. According to some experts, Baird's "noctovision" is not radar. Unlike radar (except Doppler radar), Noctovision is incapable of determining the distance to the scanned subject. Noctovision also cannot determine the coordinates of the subject in three-dimensional space.

Answer this question "Were there any problems with it?"
output: Technical difficulties with the system prevented its further development, but some of the original phonodiscs have been preserved, and have since been restored by Donald McLean,

Problem: Background: The Corrs are an Irish band that combine pop rock with traditional Irish themes within their music. The group consists of the Corr siblings; Andrea (lead vocals, tin whistle, ukulele); Sharon (violin, vocals); Caroline (drums, percussion, piano, bodhran, vocals) and Jim (guitar, piano, keyboards, vocals). They are from Dundalk, County Louth, Ireland. The Corrs have released seven studio albums and numerous singles, which have reached Platinum in many countries, and have sold 40 million albums worldwide.
Context: Jason Flom, Atlantic Records's head of A&R, recommended that they meet David Foster, a Canadian musician, producer, composer and arranger. The Corrs played live for Foster and he agreed to sign them to Atlantic Records. They extended their stay in the US for over five months to record their debut album, Forgiven, Not Forgotten. It featured six instrumental selections among its Celtic-influenced tracks. The album sold well in Ireland, Australia, Japan, Norway and Spain. Major success in the US and the UK, however, was not immediately forthcoming. Eventually, the album reached Platinum status in the UK and Australia, and 4x Platinum in Ireland, making it one of the most successful debuts by an Irish group. The Corrs' next album, 1997's Talk on Corners, was produced by Glen Ballard, who was respected for his collaboration with Alanis Morissette. The Corrs also collaborated with Carole Bayer Sager, Oliver Leiber, Rick Nowels and Billy Steinberg. The album met with lukewarm response. It was successful in Ireland and entered the Australian album charts at number 3. After the band recorded a version of Dreams for a Fleetwood Mac tribute album, they re-released Talk on Corners, with new remixes of "What Can I Do?", "So Young" and "Runaway". The special edition topped the charts worldwide and again reached multi-Platinum status in the UK and Australia. In June 1998, The Corrs participated in the Pavarotti and Friends for the Children of Liberia charity concert. The concert was held in Modena, Italy and was hosted by Luciano Pavarotti. Other performers included Jon Bon Jovi, Celine Dion, Spice Girls and Stevie Wonder. The concert aimed to raise money to build the Pavarotti and Friends Liberian Children's Village, to provide refuge for children in Liberia. The following year, The Corrs received a BRIT Award for Best International Band. They performed live on MTV's Unplugged on 5 October 1999 at Ardmore Studios, Co. Wicklow, Ireland. The resulting CD and DVD sold 2.7 million copies and featured live performances of previously released songs, plus a new song, "Radio", later featured on their third album, In Blue.
Question: What was this
Answer: The Corrs also collaborated with Carole Bayer Sager, Oliver Leiber, Rick Nowels and Billy Steinberg.

Question: Ellington was born on April 29, 1899, to James Edward Ellington and Daisy (Kennedy) Ellington in Washington, D.C. Both his parents were pianists. Daisy primarily played parlor songs and James preferred operatic arias.

Ellington was shortlisted for the Pulitzer Prize for Music in 1965 but no prize was ultimately awarded that year. Then 66 years old, he joked: "Fate is being kind to me. Fate doesn't want me to be famous too young." In 1999 he was posthumously awarded a special Pulitzer Prize "commemorating the centennial year of his birth, in recognition of his musical genius, which evoked aesthetically the principles of democracy through the medium of jazz and thus made an indelible contribution to art and culture." In September 1965, he premiered the first of his Sacred Concerts. He created a jazz Christian liturgy. Although the work received mixed reviews, Ellington was proud of the composition and performed it dozens of times. This concert was followed by two others of the same type in 1968 and 1973, known as the Second and Third Sacred Concerts. These generated controversy in what was already a tumultuous time in the United States. Many saw the Sacred Music suites as an attempt to reinforce commercial support for organized religion, though Ellington simply said it was "the most important thing I've done". The Steinway piano upon which the Sacred Concerts were composed is part of the collection of the Smithsonian's National Museum of American History. Like Haydn and Mozart, Ellington conducted his orchestra from the piano - he always played the keyboard parts when the Sacred Concerts were performed. Despite his advancing age (he turned 65 in the spring of 1964), Ellington showed no sign of slowing down as he continued to make vital and innovative recordings, including The Far East Suite (1966), New Orleans Suite (1970), Latin American Suite (1972) and The Afro-Eurasian Eclipse (1971), much of it inspired by his world tours. It was during this time that he recorded his only album with Frank Sinatra, entitled Francis A. & Edward K. (1967). Although he made two more stage appearances before his death, Ellington performed what is considered his final full concert in a ballroom at Northern Illinois University on March 20, 1974. The last three shows Ellington and his orchestra performed were one on March 21, 1973 at Purdue University's Hall of Music and two on March 22, 1973 at the Sturges-Young Auditorium in Sturgis, Michigan.

Using a quote from the above article, answer the following question: What was something significant that happened in his last years?
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Answer:
), Ellington showed no sign of slowing down as he continued to make vital and innovative recordings,