Method 2: Using the lever principle, let the elephant stand on one end and the other end on a person. When the weight of a person is the same as that of an elephant, the weight of a person can be calculated.

Method 3: Tie the elephant with a steel cable, and tie a big basket at the other end of the steel cable with the pulley of the crane, and put heavy objects in the basket. When the weights are equal, they will be balanced.

The method is as follows:

1. Use large electronic weighbridge.

2. Be an elephant seesaw. Using the lever principle, let the elephant stand on one end and the other on the human body. When the weight of a person is the same as that of an elephant, add up the weight of the person and calculate the weight of the elephant.

3. Tie the elephant with a steel cable, and tie a big basket at the other end of the steel cable with the pulley of the crane, and put a heavy object in the basket. When the weights are equal, they will be balanced.

4. Hanging method: hang a pulley strong enough on a big tree, tie the elephant at one end and hang a big basket at the other end, and put stones in the basket until the elephant is hoisted, and then weigh the stones.

Attention.

In addition to Cao Chong's method, make a bigger seesaw, pull the elephant up, and put stones (or others) on the other end. The seesaw is roughly balanced, and the weight of the stone is the weight of the elephant. The Statue of Cao Chong is a story known to almost all women and children in China. Cao Chong, who is only six years old, used the physical principle that the gravity of an object floating on the water is equal to the buoyancy of water on the object to solve a big problem that many learned adults are at a loss. This is a miracle.