Researchers use radioactive atoms to determine the age of materials that were once part of a living organism. The age of such materials can be estimated by measuring the amount of radioactive carbon they contain in a process called radiocarbon dating. Environmental scientists use radioactive atoms known as tracer atoms to identify the pathways taken by pollutants through the environment.
Radiation is used to determine the composition of materials in a process called neutron activation analysis. In this process, scientists bombard a sample of a substance with particles called neutrons. Some of the atoms in the sample absorb neutrons and become radioactive. The scientists can identify the elements in the sample by studying the emitted radiation.
Other articles related to "in science, science":
... power distribution]], in color science, the power per unit area per unit wavelength of an illumination Trip distribution, part of the four-step ...
... The complexity of algorithms and of mathematical problems is one of the central subjects of theoretical computer science ... Simplexity was whimsically defined by computer scientists Broder and Stolfi as a concept worthy of as much attention as complexity ...
... See also Politicization of science Many issues damage the relationship of science to the media and the use of science and scientific arguments by politicians ... it their only goal to cast doubt on supported science because it conflicts with political agendas ...
Famous quotes containing the word science:
“The universe is the externisation of the soul. Wherever the life is, that bursts into appearance around it. Our science is sensual, and therefore superficial. The earth, and the heavenly bodies, physics, and chemistry, we sensually treat, as if they were self-existent; but these are the retinue of that Being we have.”
—Ralph Waldo Emerson (18031882)
“Democracy is the art and science of running the circus from the monkey-cage.”
—H.L. (Henry Lewis)