
Uncertainty principle - Wikipedia
The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which certain pairs of …
Uncertainty principle | Definition & Equation | Britannica
Jan 15, 2026 · Uncertainty principle, statement that the position and the velocity of an object cannot both be measured exactly, at the same time, even in theory. The very concepts of exact position and …
7.3: The Heisenberg Uncertainty Principle - Physics LibreTexts
Mar 16, 2025 · Heisenberg’s uncertainty principle is a key principle in quantum mechanics. Very roughly, it states that if we know everything about where a particle is located (the uncertainty of position is …
Heisenberg Uncertainty Principle - Science Notes and Projects
Jan 1, 2025 · Learn about the Heisenberg uncertainty principle in physics. Get its definition, simple explanation, formulas, and worked example problems.
What Is the Uncertainty Principle? Heisenberg Uncertainty Principle ...
German physicist and Nobel Prize winner Werner Heisenberg created the famous uncertainty principle in 1927, stating that we cannot know both the position and speed of a particle, such as a photon or …
Understanding the Heisenberg Uncertainty Principle - ThoughtCo
Apr 28, 2025 · Heisenberg's uncertainty principle describes how precisely we can measure certain properties of quantum systems. In 1927, Werner Heisenberg discovered limits on how well we can …
The Uncertainty Principle - Stanford Encyclopedia of Philosophy
Oct 8, 2001 · According to quantum mechanics, the more precisely the position (momentum) of a particle is given, the less precisely can one say what its momentum (position) is. This is (a simplistic …
The Quantum Atlas | The Uncertainty Principle
One of the bedrock tenets of quantum physics is the uncertainty principle, formulated by Werner Heisenberg in the 1920s. It says that certain pairs of quantum properties—such as position (X) and …
Uncertainty principle - HyperPhysics
Uncertainty principle
What Is the Uncertainty Principle in Quantum Mechanics?
May 24, 2025 · Today, the Uncertainty Principle remains central not only to quantum mechanics but to the broader understanding of nature. It tells us that the universe isn’t clockwork; it’s more like a …