Beyoncé has worked with Tommy Hilfiger for the fragrances True Star (singing a cover version of "Wishing on a Star") and True Star Gold; she also promoted Emporio Armani's Diamonds fragrance in 2007. Beyoncé launched her first official fragrance, Heat in 2010. The commercial, which featured the 1956 song "Fever", was shown after the water shed in the United Kingdom as it begins with an image of Beyoncé appearing to lie naked in a room. In February 2011, Beyoncé launched her second fragrance, Heat Rush. Beyoncé's third fragrance, Pulse, was launched in September 2011. In 2013, The Mrs. Carter Show Limited Edition version of Heat was released. The six editions of Heat are the world's best-selling celebrity fragrance line, with sales of over $400 million.
How many editions of Heat have been launched?
six editions

Public opinion pressured the U.S. government to bring Villa to justice for the raid on Columbus, New Mexico; U.S. President Wilson sent Gen. John J. Pershing and some 5,000 troops into Mexico in an unsuccessful attempt to capture Villa. It was known as the Punitive Expedition. After nearly a year of pursuing Villa, American forces returned to the United States. The American intervention had been limited to the western sierras of Chihuahua. Villa had the advantage of intimately knowing the inhospitable terrain of the Sonoran Desert and the almost impassable Sierra Madre mountains and always managed to stay one step ahead of his pursuers. In 1923 Villa was assassinated by a group of seven gunmen who ambushed him while he was sitting in the back seat of his car in Parral.
In which year was Villa assassinated?
1923

Lossless audio compression produces a representation of digital data that decompress to an exact digital duplicate of the original audio stream, unlike playback from lossy compression techniques such as Vorbis and MP3. Compression ratios are around 50–60% of original size, which is similar to those for generic lossless data compression. Lossless compression is unable to attain high compression ratios due to the complexity of waveforms and the rapid changes in sound forms. Codecs like FLAC, Shorten and TTA use linear prediction to estimate the spectrum of the signal. Many of these algorithms use convolution with the filter [-1 1] to slightly whiten or flatten the spectrum, thereby allowing traditional lossless compression to work more efficiently. The process is reversed upon decompression.
What are around 50-60% of the original size?
Compression ratios