Other methods:

1, Use a large electronic weighbridge.

2. Have the elephants come aboard to mark them, then replace the rocks with people and add up the weight of each person to find out how much the elephant weighs.

3, make an elephant buckboard, use the principle of leverage, let the elephant stand at one end, the other end stand on the people, and so on the people and the elephant weight the same, and then add the weight of the people, you can calculate the weight of the elephant.

4. Tie the elephant with a steel cable, use the pulley of the crane, tie a big basket on the other end of the cable, put heavy objects inside the basket, when the weight is equal, it will balance.

5, hanging method: in a large tree hanging a strong enough pulley, one end of the tethered elephant, the other end of a large basket, in the basket to put the stone, until the elephant lifted up until the weight of the stone.

Cao Chong Weighs the Elephant

Originally, Cao Chong was born at the age of five or six, but he was as wise as an adult. Sun Quan had a huge elephant, too much to know its weight, visit the group under, Xian can not come up with its reasoning. Chong said: "placed on the elephant boat, and carved its water marks to, weighing things to carry, then the school can be known." Taizu Yue, that is implemented.

Translation: When Cao Chong was five or six years old, he was as knowledgeable and judicious as an adult. Once Sun Quan sent a huge elephant, and Cao Cao wanted to know the weight of this elephant, and asked his subordinates about this, but none of them could tell the way to weigh an elephant. Cao Chong said, "Put the elephant on a large ship, mark the place where the water reaches, and then let the ship be loaded with other things, and weigh these, then by comparison you will know." Cao Cao was glad to hear this, and immediately did accordingly.