How to weigh an elephant

Elephant weighing methods include: suspension method, drainage method, footprint method, modern science and technology method.

1. Suspension method.

Hang a sturdy block to a large tree, tie an elephant on one side and a basket on the other, and put stones into the basket until the elephant is hoisted, and then weigh the stones.

2. Drainage method.

Dig a geometric puddle deep enough to reach the height of the elephant, don't let the elephant stand at the bottom of the water, fill it with water and drive the elephant in, then pull it out and calculate the volume of water reduced.

3. Footprint method.

Pull the elephant onto the soft ground, measure the depth of the four footprints, and then count the depth of the footprints of a person who already knows the weight on the same ground, and you can calculate the weight of the elephant.

4. Modern science and technology law.

Weigh the elephant directly by pulling it onto the electronic weighbridge.

Elephant Profile

Elephants are the world's largest terrestrial animals, and their main external features are their flexible and muscular proboscis that has the function of winding around and is a powerful tool for elephants to defend themselves and feed. Asian elephants are 2 to 4 meters tall at the shoulder and weigh 3 to 5 tons. African elephants are 3 to 4 meters tall at the shoulder and weigh up to 8 tons.

The average height of African forest elephants does not exceed a metre and their weight is tonn. The elephant's head is large, the ears are as large as a fan, and the limbs are as thick as cylinders to support the huge body.

Elephants live a long lifespan, generally living to be around 70 years old, it is sexually mature between 10 and 15 years old, and the gestation period is up to 22 months.

Elephants are extremely widely distributed, about 40 million years ago, with the exception of Oceania and Antarctica, there are two main groups of elephants, Asian elephants and African elephants.

First of all, it is difficult to weigh an elephant without using an electronic scale. You can use one of the methods of ancient times. Find a boat, record the initial mark of the water level first, put the elephant on the boat, see the water level reach ** and then draw a marker.

Get the elephant out of the way. Then, put the stones in the boat and weigh the stones when the water line reaches the elephant's mark.

In fact, this method was recorded in ancient times, and many immeasurable weights can be weighed in this way, replacing a large weight with many small weights, and then adding up the small weights.

The weight of the elephant is based on the principle of levers, the use of pools, and the method of pressure measurement.

1. Use the principle of leverage.

Place the elephant on one end of the rocker and stand on the other end of the human. As the number of people increases, after reaching a certain number, the entire rocker is kept in balance. Because everyone's weight is different, if the weight of a person is greater than that of an elephant, then it is okay to replace it with a lighter weight person at this time.

At this point, we only need to calculate the total weight of the person at the other end, which is the weight of the elephant.

2. Use the pool.

Place the elephant in a huge pool, using the Archimedes' principle of buoyancy. Because when an elephant enters and leaves the pool, it will inevitably cause a part of the water to overflow, so we only need to calculate the weight of the part of the water that overflows when the elephant leaves the pool, and we can calculate the weight of the elephant.

3. Pressure measurement method.

Man and elephant stand on the soft and uniform ground at the same time to measure, the depth of the human foot and the elephant's foot sink, first measure the weight of the person! The weight of the elephant can be measured according to the ratio.

Cao Chong's method of weighing the elephant

Attach the elephant to the boat and make a mark on the hull after the elephant is relatively stable with the water level. Then the elephant is led to the shore and at this moment the stone is loaded into the boat. Large and small stones were loaded into the boat, and the boat sank little by little.

When he reached the marker, Cao Chong ordered the workers to stop loading the stones. At this time, as long as the weight of the stone is weighed, the weight of the elephant can be obtained, which belongs to the method of replacing the same amount of trembling.

The elephant can be weighed using the buoyancy method, the equivalent method, the lever method, etc., and the elephant weight can also be measured by the weighbridge.

The easiest way to do this is to use leverage. First, make a huge lever with one end of the elephant enlarged and the other end ready to hold the stones. We drove the elephant to one end of the lever and then put a basket at the other end to fill it with stones.

Remove the stone when the lever has the elephant just off the ground. At this time, the weight of the stone is basically equal to the weight of the elephant.

The reason for this method is very simple, that is, when using the lever to balance, the mass of the objects at both ends is equal. Because it is difficult to balance the two ends in practice, it can be assumed that the mass of the stone is only a little more than that of the elephant when the elephant is cocked, and this error is negligible.

Cao Chong called the elephant. During the Daoguang period of the Qing Dynasty, Linzhang County ordered Yao Cambodia, after 16 years of reading ancient books, field investigation wrote the "Linzhang County, Zhangshui Atlas", which still exists, among which the "Cao Wei Wudu Map Nine" shows that the Zhanghe River is in the north of Linzhang County from west to east, passing through the north of Gangcun Village.

At the end of the 90s of the last century, the villagers repaired houses and built houses, often panning for sand in the north of the village, until they reached five or six meters below, and the sand quality was good, which showed that it was the old road of the Zhanghe River bed back then, and once again proved that it was the place where Cao Chong called the elephant.

Put the elephant on the weighbridge and weigh it.

In the past, it was said that the elephant used a boat, but now science is developed, and it can be weighed on the ground, and a dry transmitter can be transmitted to the display, and the elephant can be weighed on the ground when the elephant walks on the ground, and the display can read the weight.

You can use a truck scale, and the elephant can get the weight when it walks up, and the principle is the same as weighing a car at high speed, and the core of it is actually a pressure sensor.

Speaking in a Chinese textbook, Cao Chong called it an elephant. How did Cao Chong do it, he asked the elephant to be pulled to the boat, and then made a mark where the boat was sinking, and then pulled the elephant back to the ground, and began to put stones into the boat, and when the boat sank to the mark, he stopped putting stones. Then the stones in the boat were weighed, and the weight weighed was the weight of the elephant.

This method can also be used now.

A long time ago, there was a recipe called Cao Chong to weigh elephants, and now the method of weighing elephants can be used to directly let the elephants on the scales, which is simple and convenient.

Put him want to see the floor of the city.

Unless the container-level weighbridge is still imitated by the ancients, Comrade Cao Chong is hired to instruct.