This is exactly how carbon dating works, but with dinosaurs instead of models.
Although scientists have only known about radiation since the 1890s, they have developed a wide variety of uses for this natural force.
Today, to benefit humankind, radiation is used in medicine, academics, and industry, as well as for generating electricity.
For example, just as doctors can label substances inside people's bodies, scientists can label substances that pass through plants, animals, or our world.
This allows researchers to study such things as the paths that different types of air and water pollution take through the environment.
When used in this way, they are most often intended to kill cancerous tissue, reduce the size of a tumor, or reduce pain.
For example, radioactive iodine (specifically iodine-131) is frequently used to treat thyroid cancer, a disease that strikes about 11,000 Americans every year.
X-ray machines have also been connected to computers in machines called computerized axial tomography (CAT) or computed tomography (CT) scanners.