Scientific Principles & Methods

What Is the Mann-Whitney U Test and When Should You Use It?

What Is a K Ohm? Understanding Kilo-Ohms and Resistance

How Fast Can a Spaceship Travel?

Why Is Tap Water White? The Science of Cloudy Water

Is the Angle of Incidence Equal to the Angle of Reflection?

How Is Hardness Measured? From Mohs to Indentation

What Are Spatiotemporal Dynamics in Science?

What Is the Relationship Among Frequency, Wavelength, and Wave Speed?

A Standard Sonication Protocol for Sample Preparation

How to Calculate Repeatability in a Measurement System