金冠之谜 赫农王让金匠替他做了一顶纯金的王冠,做好后,国王疑心工匠在金冠中掺了银子,但这顶金冠确与当初交给金匠的纯金一样重,到底工匠有没有捣鬼呢?既想检验真假,又不能破坏王冠,这个问题不仅难倒了国王,也使诸大臣们面面相觑.后来,国王将它交给了阿基米德.阿基米德冥思苦想出很多方法,但都失败了.有一天,他去澡堂洗澡,他一边坐进澡盆里,一边看到水往外溢,同时感到身体被轻轻拖起.他突然恍然大悟,跳出澡盆,连衣服都顾不得穿就直向王宫奔去,一路大声很着“尤里卡”,“尤里卡”(Fureka,我知道了)原来他想到,如果王冠放入水中后,排出的水量不等于同等重量的金子排出的水量,那肯定是掺了别的金属.这就是有名的浮力定律,既浸在液体中的物体受到向上的浮力,其大小等于物体所排出液体的重量.后来,该定律就被命名为阿基米德定律.The Mystery of Golden Delicious Joseph Wang farmers so that he has done a goldsmith for a crown of pure gold,well,the King of suspicion Jinguan craftsmen in the silver-doped,but the top Jinguan goldsmith to do with the first gold of the same weight,the craftsmen in the end there play a trick on them?Would like to test both true and false,and they do not damage the crown,this issue is not only deterred the king,but also all looked at each other ministers.Later,the king will give it to the Archimedes.Archimedes冥思苦想a lot,but have failed.One day,he went to Bath to bathe,he got into the bathtub,the side to see the water to spill,while the body is being gently拖起.He suddenly realized,out of bathtub,and even clothes to wear on the vertical gave the palace ran,shouting all the way is a "eureka","Eureka" (Fureka,I know) that he thought that if the crown Add water,the discharged water does not mean the same weight of gold from the water,then it must surely be the other metal-doped.This is the well-known law of buoyancy,both immersed in liquid in the upward by the buoyancy of objects,the size of objects from the weight of liquid.Later,the law was named Archimedes law.
-
点赞数:0回答数:1
-
点赞数:0回答数:1
-
点赞数:0回答数:1
-
点赞数:0回答数:1
-
点赞数:0回答数:2
-
点赞数:0回答数:2
-
点赞数:0回答数:2
-
点赞数:0回答数:1
-
点赞数:0回答数:1
-
点赞数:0回答数:1

最新问答: 读南亚地形图,完成下列各题.(1)写出图中字母代表的地理事物名称:A______(平原)B______(山脉)C__ 研究下列情况中的运动物体,哪些可看作质点( ) 数学题:求平均数应用题。1.王平期末考试语文、数学、英语的平均成绩是89分,加上自然97分,他这次期末考试四科平均成绩是 化学中几种常见的常数K及含义全面 NH4和SO4,CO3,PO4组成的物质的化学式是什么? 问一道英语的不全对话 尽快啊A:Hi,Ann.How are you?B:F___.Thank you.Where ar 甲乙两个修路队共有76人,甲队增加本队人的4倍,乙队增加6倍后,两队共加了384人.甲乙两队原来各有多少人 八年级上册浙教版的数学书和科学书封面什么样? 点(5,-2)关于直线2x+y-1=0的对称点的坐标是 有两桶油,大桶油120克,小桶油90克,两桶买了同样后,大桶油刚好是小桶油的4倍,两桶油各剩下多少千克油 “因为你的对不起,所以我决定和你没关系”的英文翻译 原来我什么都不知道用英文怎么说 已知三项mx^2+5xy-2y^2有同一个因式为3x-y求m,并分解因式 1 我很惊讶那些孩子们在这么热的天气里玩、 用拟人法改写下列句子早上公鸡一啼,我就起床锻炼春天来了,麦苗舒展着叶子鱼在水中游电风扇转着公园里的花很美 O不是自然数. ATM—DBS50投入式液位变送器的特点? Whose car is this 和 Who car is this 的翻译 一个正数的平方根为2x+1和x减7,则这个正数是? 多明净的蔚蓝色的天空.把句子变为主谓句,不改变原意
相关问答: 英文