0
In the classical physics observed in everyday life, if something has mass and takes up space, it is said to be composed of matter; this includes atoms (and thus molecules) and anything made up of these, but not other energy phenomena or waves such as light or sound.

Comments

Who Upvoted this Story

What is Pligg?

Pligg is an open source content management system that lets you easily create your own user-powered website.

Latest Comments