X-rays were discovered on which of the following?

Questions

X-rаys were discоvered оn which оf the following?

Reаd the fоllоwing pаssаge and cоmplete the questions that follow.      Two voyages at the turn of the sixteenth century laid the foundations for the Portuguese Empire in America and the Orient. In 1497, Vasco da Gama (1469 – 1524) left Lisbon, Portugal, in four ships, rounding the Cape of Good Hope after 93 days on the open sea. While visiting and raiding the East African ports, da Gama picked up an Arab pilot, who brought the fleet across the Indian Ocean to Calcutta, on the western coast of India. When he returned to Lisbon in 1499, da Gama had lost two ships and a third of his men, but his cargo of pepper and cinnamon returned the cost of the expedition 60 times over.      Shortly afterward Pero Cabral (1468 – 1520), commanding a large fleet on a second voyage to India, bore too far west and sighted the east coast of Brazil. The new western territory was so unpromising that it was left unoccupied until 1532, when a small settlement was established at Sao Vicente. In the 1540s it had attracted only some 2000 settlers, mostly men, although a few Portuguese women came after the arrival of the lord protector’s wife and her retinue in 1535. The colony served mostly as a place to send convicts in the sixteenth century. By 1600, it had only 25,000 European residents. Brummett, et. al, Civilization Past and Present, 9th ed. 2000.   The word expedition most closely means

Reаd the pаssаge belоw. Answer the True – False statements that fоllоw.      During the late 1800s, the establishment of cities made possible many kinds of social and leisure activity. From 1865 to 1885, the numbers of breweries in Massachusetts quadrupled. It is only a slight exaggeration to say that in crowded urban centers there was a saloon on every corner; during the last third of the century, the number of saloons in the country tripled. Saloons were strictly male working-class institutions, usually decorated with pictures and other mementos of sports heroes, the bar perhaps under the charge of a retired boxer.      For working men, the saloon was a kind of club, a place to meet friends, exchange news and gossip, gamble, and eat, as well as to drink beer and whiskey. Saloons also flourished because factory owners and other employers of large numbers of workers tended to forbid the consumption of alcohol on their premises. In addition, there was the gradual reduction of the workday, which left men with more free time.      The postwar era saw the first important development of spectator (public) sports, again because cities provided the concentrations of population necessary to support them. Curious relations developed between the upper and working classes from competitive sports. Professional boxing offers an example. It was in a sense a hobby of the rich, who sponsored favorite gladiators, offered prizes, and often wagered large sums on the matches. But the audiences were made up overwhelmingly of young working class males, from whose ranks most of the fighters emerged. The gambling and also the brutality of the bloody, bare handed fights cause many communities to outlaw boxing, a fact that added to the sport. Carnes & Garraty, p. 518   According to the selection, it was a common practice for employers to allow workers to have a drink at work before going home.