science

In science, a physical constant is a physical quantity whose numerical value is fixed. It can be constrasted to a mathematical constant which is a fixed number that does not directly involve a physical measurement.

According to the FAO, at least 90% of freshwater aquarium fish are captive bred [1].

This is a list of physical laws discovered by science.

• Boyle's Law (pressure and volume of ideal gas)

• Charles & Gay-Lussac (gases expand equally with the same change of temperature)

Health science is the discipline of applied science which deals with human and animal health. There are two parts to health science: the study, research, and knowledge of health and the application of that knowledge to improve health, cure diseases, and understanding how humans and animals function. Research builds primarily on the pure sciences of biology, chemistry, and physics as well as social sciences (for example medical sociology).