To understand a system, you need to perturb it. This principle underlies most of the experimental sciences and explains why our depth of understanding of biological systems has been largely determined ...

What is Atom and Molecule? Atoms and molecules are an important part of science and the building blocks of matter. Understanding them is the foundation for understanding all branches of science.

"Molecules That Matter," the first exhibit in the changing gallery at the Chemical Heritage Foundation's (CHF's) new museum, looks at 10 organic compounds and consequences they have had on society ...