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On June 21, 1880, Bell's assistant transmitted a wireless voice telephone message a considerable distance, from the roof of the Franklin School in Washington, D.C., to Bell at the window of his laboratory, some 213 metres (700 ft) away, 19 years before the first voice radio transmissions.

How many feet did the first photophone message travel?
Answer: 700
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Clay models of ducks found in China dating back to 4000 BC may indicate the domestication of ducks took place there during the Yangshao culture. Even if this is not the case, domestication of the duck took place in the Far East at least 1500 years earlier than in the West. Lucius Columella, writing in the first century BC, advised those who sought to rear ducks to collect wildfowl eggs and put them under a broody hen, because when raised in this way, the ducks "lay aside their wild nature and without hesitation breed when shut up in the bird pen". Despite this, ducks did not appear in agricultural texts in Western Europe until about 810 AD, when they began to be mentioned alongside geese, chickens, and peafowl as being used for rental payments made by tenants to landowners.

Where ducks ever used as a type of commerence in the world?
Answer: mentioned alongside geese, chickens, and peafowl as being used for rental payments made by tenants to landowners.
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The new structure is administered by a Metropolitan Council of 210 members, not directly elected, but chosen by the councils of the member Communes. By 2020 its basic competencies will include urban planning, housing, and protection of the environment. The first president of the metropolitan council, Patrick Ollier, a Republican and the mayor of the town of Rueil-Malmaison, was elected on January 22, 2016. Though the Metropole has a population of nearly seven million persons and accounts for 25 percent of the GDP of France, it has a very small budget; just 65 million Euros, compared with eight billion Euros for the City of Paris.

What is the budget for Metropole?
Answer:
65 million Euros