Important progress was made, such as full development of the decimal place-value system to include decimal fractions, the first systematized study of algebra, and advances in geometry and trigonometry. Arabic works played an important role in the transmission of mathematics to Europe during the 10th to 12th centuries.
Sure hope this helps you :)
Answer:
An effect of the teapot dome scandal
Explanation:
Many Americans felt that the government had betrayed their trust.
Answer: April 4, 1968
Explanation: Shortly after 6 p.m. on April 4, 1968, Dr. Martin Luther King Jr. was shot and mortally wounded as he stood on the second-floor balcony outside his room at the Lorraine Motel in Memphis, Tenn. He was pronounced dead at 7:05 p.m. at St.
According to the writings of Vitruvius, the Greek mathematician Archimedes created a primitive elevator in 236 B.C. that was operated by hoisting ropes wound around a drum and rotated by manpower applied to a capstan. In ancient Rome, a subterranean complex of rooms, animal pens and tunnels stood beneath the Colosseum. At various intervals, elevators powered by hundreds of men using winches and counterweights brought gladiators and large animals up through vertical shafts into the arena for battle.
In 1743, Louis XV had what was referred to as a “flying chair” built to allow one of his mistresses to access her quarters on the third floor of the Palace of Versailles. Similarly, a “flying table” in his retreat château de Choisy allowed the king and his private guests to dine without intrusion from the servants. At the sound of a bell, a table would rise from the kitchen below into the dining room with an elaborate meal, including all of the necessary accoutrements.
By the mid-19th century, elevators powered by steam or water were available for sale, but the ropes they relied upon could be worn out or destroyed and were not, therefore, generally trusted for passenger travel. However, in 1852, Elisha Graves Otis invented a safety break that revolutionized the vertical transport industry. In the event that an elevator’s hoisting rope broke, a spring would operate pawls on the car, forcing them into position with racks at the sides of the shaft and suspending the car in place. Installed in a five-story department store in New York City in 1857, Otis’ first commercial passenger elevator soon changed the world’s skyline, making skyscrapers a practical reality and turning the most valuable real estate on its head—from the first floor to the penthouse.
Answer:
The number of helots in relation to Spartan citizens varied throughout the history of the Spartan state; according to Herodotus, there were seven helots for each Spartan at the time of the Battle of Plataea in 479 BC. Thus the need to keep helot population in check and prevent rebellion was one of the main concerns of the Spartans. Helots were ritually mistreated, humiliated and even slaughtered: every autumn the Spartans would declare war on the helots so they could be killed by a member of the Crypteia without fear of religious repercussion. Uprisings and attempts to improve the lot of the helots did occur, such as the Conspiracy of Cinadon.
Explanation:
Hope this helps!
:)
