Contextuality might mean that there are no alternatives to Quantum mechanics that are sensible. Given Quantum isnt sensible either, there may just not be any sensible theories at all.

What is entanglement really? And why is it that its a uniquely quantum phenomena? Bohmian mechanics stuff: In Bohmian mechanics, you still have superpositions, they just mean something very different. A Bohmian mech particle only has one...

The act of measurement in quantum mechanics causes "collapse of the wavefunction". Here, I explain what is meant by measurement in the discipline of quantum mechanics.<br/>

This video is based on the fantastic discussion of Bells theorem by my favourite physicist, David Mermin. Is the Moon there when nobody looks?

By Marshall Auerback



The philosopher Karl Popper argued that we cannot know empirical truths with absolute c

ertainty.

According to Popper, even scientific laws can't be verified beyond a shadow of a doubt....

How is quantum randomness anymore mysterious than the randomness of a coin flip? Youll see. The homework questions and extra readings are below: The questions: 1. What if there are three slits and you only have a detector at one. What...

Professor David Kaiser discusses his new book "How the Hippies Saved Physics," what it takes to become an MIT professor, and his upcoming talk at the Cambridge Science Festival. 0:00 Intro QUESTIONS (paraphrased) 1:37 A little about the...

In this video we see how the Schrodinger equation comes out very simply from the conservation of energy. First. Throughout these 2 videos, I kept talking about predicting the future, and that if you know the present state, you can...

I discuss a few experimental facts about some weird thing called Spin, especially the Stern Gerlach experiment.

The EPR paradox, that we met in a previous video, tells us 2 entangled particles can effect each other no matter now far away they are. But then why cant we use them to send instant messages across the universe? Einsteins relativity...

We've gone through some of the main advancements in modern physics, which brings us to the here and now! What are physicists currently working on? One huge area of interest is developing a quantum field theory for the gravitational...

Get ready for one of the weirdest things in modern physics. Particles that pop into existence from nothing and then go back to nothing again! This is happening all the time, all around you and even inside of you. It's the quantum foam,...

Weve talked about the quantum state plenty- but what happens to it over time? Thats exactly the question the Schrodinger equation solves. This video we talk about Linearity. In the next video we discuss the equation itself and its...

In this video, the Debroy Hypothesis is explored, shedding light on the wave-particle duality of matter and the equation used to determine particle wavelength. The discussion delves into interpreting the hypothesis precisely, leading to...

In this video, we learn about the life and contributions of Albert Einstein, the famous scientist who revolutionized our understanding of the universe. From his early curiosity about mathematics and electricity to his groundbreaking...

In this video, we discuss the conceptual aspects of the quantum mechanics model, Particle-in-a-Box (also called the Infinite Potential Well model): Wavefunctions and Energy Eigenvalues. NEXT VIDEO: Particle-in-a-Box Example Problems

I explain the basic idea of Bohmian Mechanics and how it gives the same results as Quantum Mechanics with out saying things like "a particle is in more than one place at a time"

An explanation and the pros and cons of Pilot Wave Theory aka Bohmian mechanics.

There are few scientists that can be said to have touched the public imagination. Physicist and cosmologist Stephen Hawking is one such scientist. He spent his life seeking the answers to the biggest questions in the universe. This video...

Quantum mechanics, relativity, space-time, Schrodinger's Cat, the Heisenberg Uncertainty Principle, you've heard of all this stuff but you assume that there's no way you can understand it. Think again! With a little bit of preparation,...

Introductory video to the hydrogen line spectrum, which in part led to the initial development of quantum mechanics.<br/>

This video is an simple introduction to quantum mechanics that explains why there is still so much controversy over the meaning of this scientific theory.

This video will focus on why the uncertainty principle happens. Well see that you need surprisingly little to explain it.

In this video, I explain what the Fourier series does, and why it is one of the most surprising results in mathematics. All the plotted graphs in this video were done in Mathematica. If you dont have the program then you can use the free...