Holmes radiometric dating
he question of the ages of the Earth and its rock formations and features has fascinated philosophers, theologians, and scientists for centuries, primarily because the answers put our lives in temporal perspective.
Until the 18th century, this question was principally in the hands of theologians, who based their calculations on biblical chronology.
James Hutton, a physician-farmer and one of the founders of the science of geology, wrote in 1788, “The result, therefore, of our present inquiry is, that we find no vestige of a beginning, — no prospect of an end.” Although this may now sound like an overstatement, it nicely expresses the tremendous intellectual leap required when geologic time was finally and forever severed from the artificial limits imposed by the length of the human lifetime.
By the mid- to late 1800s, geologists, physicists, and chemists were searching for ways to quantify the age of the Earth.
The gravity of the earth interacts with objects in the solar system including the sun and the moon.
The Earth might have been formed over 4 billion years ago, based on the evidence obtained from radiometric age-dating of the meteorite.
People have been trying to estimate the age of the Earth for thousands of years.
All mythologies have their own creation myths, while some Ancient thinkers like Aristotle thought our planet was eternal.
In 1862, the physicist Lord Kelvin published the first thorough calculations, placing the planet’s age anywhere between 20 million and 400 million years.He correctly assumed that the Earth formed as a completely molten object and tried to determine the amount of time it would take to cool down to the current temperature.Biologists and geologists had a very hard time accepting this theory – for both of the fields, the time was too short to be plausible.The Earth is the third planet from the Sun, rotating about its axis about 365.25 times in one orbit around the sun.it is the only known object in the universe that can support life.