E=Mc°2

Scientists have many tools available to them when attempting to describe how nature and the universe at large work. Often they reach for laws and theoriesfirst. What's the difference? A scientific law can often be reduced to a mathematical statement, such as E = mc²; it's a specific statement based on empiricaldata, and its truth is generally confined to a certain set of conditions. For example, in the case of E = mc², c refers to the speed of light in a vacuum.
Ascientific theory often seeks to synthesize a body of evidence or observations of particular phenomena. It's generally -- though by no means always -- agrander, testable statement about how nature operates. You can't necessarily reduce a scientific theory to a pithy statement or equation, but it does representsomething fundamental about how nature works.
Both laws and theories depend on basic elements of the scientific method, such as generating a hypothesis, testingthat premise, finding (or not finding) empirical evidence and coming up with conclusions. Eventually, other scientists must be able to replicate the resultsif the experiment is destined to become the basis for a widely accepted law or theory.
In this article, we'll look at 10 scientific laws and theories that youmight want to brush up on, even if you don't find yourself, say, operating a scanning electron microscope all that frequently. We'll start off with a bangand move on to the basic laws of the universe, before hitting evolution. Finally, we'll tackle some headier material, delving into the realm of quantum physics