Field of study
Physics
99 articles
Physics
Levers: The 3 Classes, Formula and Everyday Examples
A lever is a rigid bar that pivots around a fixed point so that a small push at…
October 13, 2026
Physics
Measuring Instruments: Types, Uses and How to Choose
A measuring instrument is any device that turns a physical quantity into a number you can read: a…
October 12, 2026
Chemistry
Radioactive Isotopes: Examples, Half-Lives, and Uses
A radioactive isotope is a version of an element with an unstable nucleus. It has the same number…
October 7, 2026
Physics
Physical Quantities: Types, Units and Examples Explained
A physical quantity is a property you can measure, and it always has two parts: a number and…
October 7, 2026
Physics
Optics Topics: A Plain-English Map of the Field
Optics is the study of light and how it behaves, and the list of optics topics is longer…
October 7, 2026
History
The Complete List of 1922 Nobel Prize Winners
On December 10, 1922, the Nobel committees handed out two years of physics history in a single ceremony.…
September 29, 2026
History
1918 Nobel Prize Winners: Who Won, Who Didn’t
TLDR Two categories delivered winners in 1918: Physics went to Max Planck for founding quantum theory, and Chemistry…
September 27, 2026
Physics
Examples of Elementary Particles, Explained Simply
Quick Answer Elementary particles fall into three families, and nothing splits smaller than they do: That’s it. Fifth-generation…
September 1, 2026
Physics
The Strong Nuclear Force: Why Atoms Don’t Fly Apart
TLDR The strong nuclear force is what keeps atomic nuclei from blowing themselves apart. Protons are packed together…
September 1, 2026
Physics
Examples of Energy: 10 Types and How They Work
Table of Contents TLDR Every kind of energy is either stored (potential) or moving (kinetic), and the ten…
August 25, 2026