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Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the leap to storing digital audio on an optical disc was easily made. Sony first publicly demonstrated an optical digital audio disc in September 1976. A year later, in September 1977, Sony showed the press a 30 cm disc that could play 60 minutes of digital audio (44,100 Hz sampling rate and 16-bit resolution) using MFM modulation. In September 1978, the company demonstrated an optical digital audio disc with a 150-minute playing time, 44,056 Hz sampling rate, 16-bit linear resolution, and cross-interleaved error correction codespecifications similar to those later settled upon for the standard Compact Disc format in 1980. Technical details of Sony's digital audio disc were presented during the 62nd AES Convention, held on 1316 March 1979, in Brussels. Sony's AES technical paper was published on 1 March 1979. A week later, on 8 March, Philips publicly demonstrated a prototype of an optical digital audio disc at a press conference called "Philips Introduce Compact Disc" in Eindhoven, Netherlands.

Where was the 62nd AES Convention held?
Answer: Brussels
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Paper waste accounts for up to 40% of total waste produced in the United States each year, which adds up to 71.6 million tons of paper waste per year in the United States alone. The average office worker in the US prints 31 pages every day. Americans also use on the order of 16 billion paper cups per year.

How many millions of tons of paper are wasted in the US each year?
Answer: 71.6 million
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At the same time, some Alsatians were in opposition to the Jacobins and sympathetic to the invading forces of Austria and Prussia who sought to crush the nascent revolutionary republic. Many of the residents of the Sundgau made "pilgrimages" to places like Mariastein Abbey, near Basel, in Switzerland, for baptisms and weddings. When the French Revolutionary Army of the Rhine was victorious, tens of thousands fled east before it. When they were later permitted to return (in some cases not until 1799), it was often to find that their lands and homes had been confiscated. These conditions led to emigration by hundreds of families to newly vacant lands in the Russian Empire in 18034 and again in 1808. A poignant retelling of this event based on what Goethe had personally witnessed can be found in his long poem Hermann and Dorothea.

What was the name of the poem by Goethe?
Answer:
Hermann and Dorothea