动物在炎热的夏季,生活在浅海的海动物参,由于海水温度升高,不得不移向水温较低的海底,进入夏眠状态。物理古希腊学者阿基米德在浴盆里洗物理澡时发现了计算浮力的办法,惊喜地叫了一声“尤里卡”。这个词在古希腊语里的意思是:“好啊!有办法啦!”医学成年人全身上下共有206块骨头。其中最长的是股骨,连接骨盆和膝盖;最小的是位于耳内的镫骨,长度只有3毫米左右。 Animals in the hot summer, living in the shallow sea of ​​sea ginseng, due to sea water temperature, had to move to the lower water temperature, into the summer sleep state. Physics Ancient Greek scholar Archimedes discovered a way to calculate the buoyancy when he took a bath in the tub and cried out in surprise “Eureka.” The meaning of the word in ancient Greek is: “Well! There is a way!” Medical adults have a total of 206 bones above and below their bodies. The longest of them are the femur, the pelvis and the knee; the smallest is the tarsal bone in the ear, which is only about 3 mm in length.