They could tell the time of day by looking at the sun in the sky: morning, noon or afternoon.Around the year 1,400, people began to use the hourglass. It was made of glass with some sand in it. It was wide at both ends, but (3) n in the middle. The sand ran from one end...
What was the first junk food invented? Who invented movable type? Which society invented glassblowing? Who founded the House of Tudor? Who patented the first automobile? Who invented the telephone during the Industrial Revolution? Where was the first metal movable type invented?
Now almost everyone wears a wrist watch.The history of telling the time People could tell the time by 72.the71.1400sun in the sky.People used the hourglass which was made of glass with some sand in it. The sand took an Around the year 140073. to run from one end to the other end....
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Who invented the glass harmonica? Who was the oldest person on the First Fleet? Who was the best recorder of early church history? What is the oldest name in history? What were the first automobiles powered by? What year was the phonograph invented?
C. A year. 相关知识点: 试题来源: 解析 N.听短文和问题,选择正确答案(共7小题;每小题1分,满分 7分) A 19. What was the model plane made of? A. Wood and glass. B. Grass, leaves and flowers. C. Paper. A20. What did the speaker think of the fair? A. It was cool. B....
When was pasteurization invented? About 160 years ago, Louis Pasteur developed the pasteurization process while he was tasked with finding practical solutions for problems such as keeping harmful bacteria at bay in different foods. The dairy industry’s commitment to assuring safe products has a long...
An umbrella is a most useful tool.It was invented over 4,000 years ago.It was invented in China and Egypt.It's used for keeping the rain out.When the sun is shining in the sky,an umbrella is also used to keep the sun out.It is still used today. A bike is a very u...
The term "light-year" was first coined by German scientist, astronomer, mathematician and physicist Friedrich Bessel in 1838, when he measured the distance from Earth to a star called 61 Cygni, and came up with a distance of 660,000 times Earth's orbital radius. He calculated that light wo...
And these clear-glass reading stones evolved into the eyeglasses we know today.So we’re pretty sure that glasses were invented in about the late 1200s, well over a hundred years before the printing press.But, it’s not clear who exactly invented them first, or exactly what year, but ...