SciShow
How Studying Bacteria Almost Kept Us From Discovering the Flu
Today we know pathogens -- viruses, bacteria, and certain other microbes -- are responsible for many diseases. But linking specific diseases to the microbes that cause them has been surprisingly tricky, and some research practices lead...
TED-Ed
TED-Ed: Euclid's puzzling parallel postulate - Jeff Dekofsky
Euclid, known as the "Father of Geometry," developed several of modern geometry's most enduring theorems--but what can we make of his mysterious fifth postulate, the parallel postulate? Jeff Dekofsky shows us how mathematical minds have...
Curated Video
Proofs Using CPCTC
Congruent triangles are two triangles that share the same shape and size, but their positioning may be different. If you know that two triangles are congruent, you can prove every corresponding angle and every corresponding side is...
Curated Video
Wrestling with Quantum Theory
Nobel Laureate Anthony Leggett (Illinois) highlights some of the difficulties with quantum mechanics.
Catalyst University
Postulates of Quantum Mechanics: Observables & Operators
Postulates of Quantum Mechanics: Observables & Operators
Catalyst University
Postulates of Quantum Mechanics: Expectation Values
Postulates of Quantum Mechanics: Expectation Values
Catalyst University
Postulates of Quantum Mechanics: Orthonormality & Basis Sets
Postulates of Quantum Mechanics: Orthonormality & Basis Sets
Catalyst University
Postulates of Quantum Mechanics: Orthogonality of Wavefunctions
Postulates of Quantum Mechanics: Orthogonality of Wavefunctions
Catalyst University
Postulates of Quantum Mechanics: Eigenvalues & Eigenfunctions
Postulates of Quantum Mechanics: Eigenvalues & Eigenfunctions
Catalyst University
Postulates of Quantum Mechanics: Hermitian Operators 2
Postulates of Quantum Mechanics: Hermitian Operators 2
Catalyst University
Postulates of Quantum Mechanics: Hermitian Operators 1
Postulates of Quantum Mechanics: Hermitian Operators 1
Let's Tute
Euclid's Geometry: Postulates and Actions
Euclid's Geometry part 2/2: In this video, we explore the first four postulates, which are considered self-evident truths, and the fifth postulate, which has been extensively studied and led to the development of an equivalent version by...
Catalyst University
Quantum Mechanics | The Hydrogen Line Spectrum
Introductory video to the hydrogen line spectrum, which in part led to the initial development of quantum mechanics.
Physics Girl
Special Relativity and the Twin Paradox
How can just two rules of Einstein's 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time? Want exclusive updates whenever a new video is posted? Special relativity was one of the first...
Flipped Math
Unit 1 Review: Tools for Geometry
Pupils review the vocabulary, formulas, and postulates from the opening unit in Geometry. Individuals use these to solve a problem set that requires learners to apply algebraic skills along with providing reasons within a proof. Scholars...
Flipped Math
Points, Lines, and Planes
Geometry is more than just vocabulary. Pupils learn the basic geometric definitions and how to identify and name points, lines, and planes. Though the first lesson is packed with related vocabulary, scholars experience four postulates...
Crash Course
Special Relativity: Crash Course Physics #42
Explore the concept of relativity and how it is related to light. An episode of the Crash Course physics series teaches learners the basics of special relativity. The narrator explains two postulates of relativity and gives scholars...
Krista King Math
Length of a Line Segment
What's the quickest way to get from point A to point B? Follow the line segment! The concept video demonstrates how to find the length of a line segment. Examples range from numeric to algebraic.