B
The Renaissance period in Europe is known for rapid and pathbreaking inventions and developments that took place in fields like science,arts,philosophy,etc.It is believed that Florence,Italy,was the center of the Renaissance Movement.Here are a few inventions of the Renaissance period.
The mechanical clocks were introduced in the 14th century.Measuring a day’s time in a 24hour cycle became possible after the invention of mechanical clocks.In 1656,a pendulum (钟摆) clock was made by Christian Huygens.He made improvements to the clock to reduce the error from 1 minute a day to 10 seconds a day.In 1721,George Graham reduced the error to 1 second a day.In 1889,Sigmund Riefler further reduced the error to 1/100th of a second a day.In the 1930s,the quartz crystals (石英晶体) were used to make the quartz clocks.
There are no clear records available as to who invented eyeglasses.However,1000 AD was roughly the period during which eyeglasses were invented.In the 13th century,Roger Bacon,and Englishman,suggested a scientific theory about how to make use of corrective eyeglasses.However,he did not invent eyeglasses.Salvino D’Armato Degli Armati from Italy is believed to have made wearable eyeglasses in 1284.
Wallpaper is one of the important inventions of the Renaissance period.The first paper mill in England was set up in 1496.With the help of paper,many different designs and patterns of wallpapers were developed.Stencils (模板),handpainted designs and woodblock prints were used in the creation of wallpapers.
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