Solving the Quantum Particle in a Box | Step-by-Step
Description:
A clear, step-by-step walkthrough of one of the classic problems in quantum mechanics — the particle in a one-dimensional infinite potential well.
In this video you’ll see:
• The time-independent Schrödinger equation
• Boundary conditions
• Derivation of the wavefunction \psi_n(x) = \sqrt{\frac{2}{L}} \sin\left(\frac{n\pi x}{L}\right)
• Quantized energy levels E_n = \frac{n^2 \pi^2 \hbar^2}{2m L^2}
Perfect for students learning quantum mechanics for the first time.
#QuantumMechanics #Physics #QuantumPhysics #ParticleInABox #SchrodingerEquation #STEM #Science #PhysicsStudent #Education #Math
Can you solve this classic math riddle? 🤔
If it takes 5 machines 5 minutes to make 5 widgets…
How long would it take 100 machines to make 100 widgets?
Most people get this wrong on the first try.
Drop your answer in the comments 👇
(No cheating — think it through!)
#MathRiddle #BrainTeaser #TwitterPuzzle
What is a Group?
Explained in 25 seconds through the most important example: invertible https://t.co/6Vpn8bgQgUₙ(ℝ) = all n×n real matrices with det ≠ 0.
Closed under multiplication, has identity, every element has an inverse, and the operation is associative.
That’s exactly the definition of a group.(And yes — matrix multiplication is not commutative.)Based on Benedict Gross’s Abstract Algebra lectures at Yale.#Math #GroupTheory #Algebra #Yale #Mathematics
Harvard Stat 110 Highlights: Why “Life on Neptune = 1/2” Is Wrong + How to Write Real Math SolutionsShorter versions:
Stat 110 in 7 minutes: Clarity, Honesty & the Neptune Fallacy
Probability isn’t formulas — it’s the logic of uncertainty (Stat 110)
From homework style to ice cream counting: Best of Stat 110
Pick whichever fits best.