monnierinventedthefirstfunctional(实用的)sewingmachinein1829.EliasHowepatented(获得专利)animprovedsewingmachinein1846.▱Inthe1920s,thefirsttelevisioncameout.Thentheyearof1954markedthebeginningofcolortelevisionage.The“box”bringsgreatjoytopeople’slife.()46.Whydopeoplenolongerthinkofsomeinventionsasinventions?
Then, new inventions changed the weekends. *People used electric streetcars to travel in the cities. On weekends, they rode the streetcars to the parks. Young people like roller coasters. * The first movie lasted only one minute. In the 1920s, movie theaters sold millions of tickets each ...
Then, new inventions changed the weekends. *People used electric streetcars to travel in the cities. On weekends, they rode the streetcars to the parks. Young people liked roller coasters. * The first movie only lasted one minute. In the 1920s, movie theaters sold millions of tickets each ...
and could not work. Glasses meant that people could work in their old age, People who wanted to remember some information could write it down and read it. Eye glasses are one of the world’s greatest inventions and were probably worn by the people who designed the first telephone and car...
lots of time at home on weekends. Then, new inventions changed the weekends. *People used electric streetcars to travel in the cities. On weekends, they rode the streetcars to the parks. Young people like roller coasters. * The first movie lasted only one minute. In the 1920s...
Inventions Beginning With "A" French aeronauts Jacques Charles (1746-1823) and Noel Robert made the first manned (free flight) ascent in a hydrogen balloon, designed by Charles, a physics professor, and constructed by Robert and his brother Jean. It took off in front of a crowd of 400,000...
the capital ofHenanin recent years, for instance, a ruin belonging to the late Yangshao cultural period 5,300 years ago, found astronomy, jade, silk, and rammed earth walls in the ruins, Yang noted. Such discoveries are evidence that tra...
Louis Pasteur Biography, Experiments & Inventions from Chapter 18 / Lesson 16 157K Learn about Louis Pasteur's inventions and experiments. See an explanation of the Pasteur effect and the Louis Pasteur Cell Theory experiment. Related to this...
Most people agree that television is one of the mostimportantinventions of the past century. Opinions vary as to its value‚ but no one can deny the great effect that television has on society. Many people in the world cannot live a day without the television. Ithinkwatching television c...
could be stored. Inventions that allowed people to transport water and effectively use water to irrigate crops played a large role in the emergence of cities. Coastal areas were often desirable locations for their transportation access. Continued efforts to transport and store water further influenced...