Scientific Principles & Methods

What Is the LD50 Test and Why Is It Controversial?

The Remarkable Prevalence of Symmetry in Nature

Why Is a Control Group Important in an Experiment?

Why Do Ships Float? The Science of Buoyancy

When Is Unblinding Necessary in Clinical Trials?

How Do Scientists Classify Living Organisms?

Is G the Same as RCF in Centrifugation?

How to Calculate Relative Abundance

What Do We Use Microscopes For?

How to Calculate Person-Years for a Study