阿基米德(Archimedes)

阿基米德(Archimedes)


相关考题:

阿基米德蜗杆的()参数为标准值。 A、轴面B、端面C、法面

Passage FourArchimedes was a famous Greek mathematician and scientist. He was born around 287 BC and he died in the year 212 BC.Archimedes is most well-known for one specific idea that he came up with. "Archimedes's Principle" states that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that the object moves. For example, if you put a piece of wood and a piece of gold the same size in water, only the wood will float. Both the wood and gold move the same amount of water, but the wood weighs less than this water, while the gold weighs more.It is believed that Archimedes discovered this principle when the king of Syracuse asked him to solve a problem. The king wanted to know if his crown was pure gold or a mixture of gold and silver. The king, of course, did not melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the king.48. A good title for the selection is______.A. ArchimedesB. Archimedes's PrincipleC. A Gold and Silver CrownD. The King of Syracuse

磁盘上的磁道是(18)。A.记录密度不同的同心圆B.记录密度相同的同心圆C.一条阿基米德螺线D.两条阿基米德螺线

阿基米德原理

热力除氧是根据()的基本原理。A、阿基米德定律和道尔顿定律B、道尔顿定律和亨利定律C、道尔顿定律和自控定律D、自动定律和阿基米德定律

什么叫渐开线蜗杆?什么叫阿基米德蜗杆?为什么通常不采用渐开线蜗杆而采用阿基米德蜗杆?

阿基米德螺线,又称等速螺线。

阿基米德蜗杆又(),是齿面为(),其端面齿廓是阿基米德螺旋线,轴向齿廓是直线。

人类文明史上,公认最伟大的三位数学家,是阿基米得(Archimedes)、高斯(Gauss)还有谁?

“走自己的路,让别人去说吧“、“冬天来了,春天还会远吗?”、“给我一个稳固的支点,我就能把地球翘动”分别是()的名言。A、但丁、雪莱、阿基米德B、列宁、拜伦、阿基米德C、裴多菲、泰戈尔、阿基米德

水下称重法的依据是阿基米德定律。

()最早计算出了地球与太阳间距离和地球和月亮间距离之比。A、AristarchusB、PlatoC、NikolajKopernikD、Archimedes

圆柱蜗杆根据其刀具加工位置不同有渐开线蜗轮、阿基米德蜗轮、法向直廓蜗杆等,常用的是()。A、渐开线蜗轮B、阿基米德蜗轮C、法向直廓蜗杆

阿基米德在力学研究上的主要特点?

阿基米德蜗杆蜗轮传动,蜗轮在中心端面上的齿形是()A、阿基米德螺旋线B、斜直线C、渐开线D、复杂的平面曲线

阿基米德蜗杆的轴截面齿形为(),而端面齿形为阿基米德螺线。

单选题热力除氧是根据()的基本原理。A阿基米德定律和道尔顿定律B道尔顿定律和亨利定律C道尔顿定律和自控定律D自动定律和阿基米德定律

名词解释题阿基米德定律

名词解释题阿基米德原理

问答题阿基米德是被哪个民族杀害的?

问答题简述阿基米德的主要数学成就。

单选题磁盘上的磁道是( )。A记录密度不同的同心圆B记录密度相同的同心圆C一条阿基米德螺线D两条阿基米德螺线

名词解释题阿基米德(Archimedes)

问答题阿基米德在力学研究上的主要特点?

单选题Which of the following is the best way to combine sentences 3, 4, and 5?AThe name of the phenomenon comes from the legend of Archimedes, who had been thinking for days about how to determine whether King Hieron II’s crown was pure gold without destroying it.BArchimedes had been thinking for days about how to determine whether King Hieron II’s crown was pure gold without destroying it, and this is where the name of the phenomenon comes from.CThe legend of Archimedes thinking about how to determine whether King Hieron II’s crown was pure gold without destroying it is the origin of the name of the phenomenon.DThe phenomenon is named for Archimedes and his thinking for days about how to determine whether King Hieron II’s crown was pure gold without destroying it.EThe name of the phenomenon was from Archimedes, and his thinking for days about how to determine without destroying it whether King Hieron II’s crown was pure gold.

问答题人类文明史上,公认最伟大的三位数学家,是阿基米得(Archimedes)、高斯(Gauss)还有谁?

单选题“走自己的路,让别人去说吧“、“冬天来了,春天还会远吗?”、“给我一个稳固的支点,我就能把地球翘动”分别是()的名言。A但丁、雪莱、阿基米德B列宁、拜伦、阿基米德C裴多菲、泰戈尔、阿基米德