How old is the Earth?

How old is the Earth?
Unfortunately, there are many wastes orbiting our planet.

The age of the land of things that provoked controversy in many times has been a very long time.

Returning to 1645, a scientist named John Lightfoot, whose calculations are based on the Bible, declared that the earth was created specifically at 9 am in
At the end of the eighteenth century a scientist named Comte de Buffon heated a miniature model of the Earth and measured its low temperature. Based on the results, it was estimated that the Earth was about 75,000 years old.

In the 19th century, the physicist Lord Kelvin used different equations and concluded that the Earth was 20 to 40 million years old.

But all these results were refuted by the discovery of radioactivity at the end of the 19th century and the beginning of the twentieth century, which was quickly followed by calculating the decay equations of radioactivity of different materials.

Earth scientists used this knowledge to calculate the age of Earth's rocks, as well as models and samples of meteorites and rocks brought from the moon by astronauts.

For example, scientists looked at the decay of lead isotopes in rocks and compared them with computational equations to change lead isotopes over time.

They have been able to determine the Earth's age. The Earth has been formed since 4.45 billion years with an error rate of only 1%.