Archimedes used the principle of water displacement. He measured the volume of water displaced by the crown and compared it to the volume of water that would be displaced by an equal weight of pure gold.
The cast of the TV series "Lever" included Guo Jingfei, Yu Yi, Qian Xiaoyun, Xiong Dailin, Tong Liya, Zhang Xilin, and other leading actors. Among them, Guo Jingfei played Xu Feng, Yu Yi played Xiao Jian, Qian Xiaoyun played Xia Bing, Xiong Dailin played Wang Haili, Tong Liya played Chen Xin, Zhang Xilin played Long Ge, and so on. This TV series was an urban drama with the theme of economic investigation and commercial warfare. It told the story of Xiao Jian's investigation of Xu Feng's financial criminal group.
I think his use of optics to set ships on fire was quite famous. By using mirrors to focus sunlight on the Roman ships, he showed his brilliant scientific mind. It was a unique and unexpected way to attack the enemy during that time.
We can come to the following conclusion: The plot introduction of the 40th episode of Lever is about Xiao Jian and Xu Feng going through a life-and-death test together. They drink and chat. Xiao Jian was curious about Xu Feng's true love for Wang Haili and Chen Xin. Xu Feng randomly found an excuse to cover it up and asked Xiao Jian about his romantic history in the police academy and his relationship with Xia Bing. However, the details of the plot were not mentioned in the search results provided.
Archimedes was a great Greek mathematician. One of the most famous stories about him is the discovery of Archimedes' principle. When the king suspected that a crown was not made of pure gold, Archimedes was tasked with finding out. While taking a bath, he noticed that the water level rose as he got in. He realized that the volume of his body displaced an equal volume of water. He then applied this principle to test the crown. By comparing the volume of water displaced by the crown with that of an equal mass of pure gold, he could determine if it was pure gold or not.
The story of 'Eureka' by Archimedes is quite famous. Archimedes was tasked with determining whether a crown was made of pure gold. One day, when he got into a bath, he noticed that the water level rose as he entered the tub. He realized that the volume of his body displaced an equal volume of water. He then applied this principle to the crown. By measuring the volume of water displaced by the crown and comparing it to the volume of water displaced by an equal mass of pure gold, he could determine if the crown was pure gold. This led him to shout 'Eureka!' which means 'I have found it!' in Greek.
The key elements include his intellectual curiosity. This is what drove him to take on the task of determining the purity of the crown. His ability to make connections between everyday observations (like water displacement) and scientific principles is also crucial. Moreover, his patriotism in using his skills to protect his city is an important part of the story. Archimedes was not just a scientist in isolation, but one who used his knowledge for practical and noble purposes.
Archimedes was a great mathematician. King Hiero asked him to determine if a crown was made of pure gold. Archimedes got the idea while taking a bath. When he entered the tub, he noticed the water level rising. He realized that the volume of an object could be measured by the displacement of water. He then used this principle to find the volume of the crown. By comparing its density to that of pure gold, he could tell if it was pure or not.
The 'Archimedes Eureka story' is very significant. It shows Archimedes' great intelligence. When he discovered the principle of buoyancy while in the bath, his exclamation 'Eureka' (I have found it) became famous. This discovery was crucial for understanding the relationship between an object's volume and the volume of fluid it displaces, which has wide applications in various fields like shipbuilding and fluid mechanics.