Looking Glass Universe
Is Quantum Mechanics True? Bells theorem explained
Well be looking at Bells Theorem and what it actually says about whether Quantum Mechanics is true.
Virtually Passed
Impulse and Momentum for a System of Particles Proof
Derivation for the impulse and momentum formula for a system of particles. Notice that if the sum of external forces = 0 then momentum in the system is conserved!
Virtually Passed
cuvilinear n t coordinate systems example
If you're given the parametric equations describing the path of a particle. How do you find out the accelerations in the normal and tangential direction? Find the velocity and you know the tangential direction. Find the acceleration and...
Curated Video
Calculating Density: Mass and Volume Relationship
This video is a lecture presentation on how to calculate the density of a substance. The presenter explains how density is the property of a substance that defines how massive that substance is per unit volume. The video shows examples...
TMW Media
Traveling Desert Sand: What equipment is used to measure sand storms
What are the three ways of measuring sand clouds? When measuring a sand cloud, what key points do scientists determine? Traveling Desert Sand, Part 2
Catalyst University
Particle-on-a-Ring Example #1: Calculate Electron Probability
Particle-on-a-Ring Example #1: Calculate Electron Probability
Looking Glass Universe
A problem with Bohmian Mechanics Contextuality
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.
Weatherthings
Water Smart: Water in the Air - Summary
Water in the Air reveals the varied phases of water that surround us, fall on us, travel in air, and serve as a crucial component of the water cycle. Emphasis is on the fact that water in air can be vapor or solid, visible or invisible,...
Virtually Passed
A better way to understand Differential Equations | Nonlinear Dynamics (Part 2)
These second-order linear differential equations can be written in the form dx/dt = ax + by dy/dt = cx + dy Depending on the values of a,b,c and d, the dynamics will be very different! They can be characterized by finding the eigenvalues...
Catalyst University
Physical Chemistry | The Hard Shell Model
1) What is the Hard Shell Model equation of state? 2) What is the constant, b? 3) What does this model tell us about repulsions? 4) Overall, what is the theory of the Hard Shell Model?
Looking Glass Universe
Quantum Entanglement and the EPR Paradox
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...
Physics Girl
Seeing the Smallest Thing in the Universe
Beyond molecules and atoms, how far down can we see below the wavelength of visible light? What is the smallest possible scale in the universe?
National Institute of Standards and Technology
Helping Quantum Computers Study the Physics of the Universe
Quantum computers are still years away, but a trio of theoretical physicists has already figured out at least one talent they may have. The theorists, including one from the National Institute of Standards and Technology (NIST), have...
Physics Girl
This result could change physics forever
Explaining the exciting new Fermilab muon result to my production team
Curated Video
Mechanical Ways to Detect Objects and Explore Internal Structures
This video explores various mechanical ways that can be used to detect objects and explore their internal structures, starting with sound waves. The video explains how sound waves work, how ultrasound waves are used for medical imaging,...
Physics Girl
Why This Stuff Costs $2700 Trillion Per Gram - Antimatter at CERN
There’s a factory in Europe that makes antimatter! It’s the rarest, most expensive, and potentially the most dangerous material on earth. Scientists don’t know why this material is so rare. Anti-atoms took 72 years after we discovered...
Flipping Physics
AP Physics C: Rotational Dynamics Review - 2 of 2 (Mechanics)
Calculus based review of the cross product torque equation, how to do a unit vector cross product problem, rotational equilibrium, the rotational form of Newton’s second law, the angular momentum of a particle and of a rigid object with...
Physics Girl
Inside the World's Largest Science Experiment
Dianna from Physics Girl visited CERN in Geneva Switzerland to find out what the detectors at the LHC are looking for, and dive into the fundamental question: what are particles?
Curated Video
What is the Heisenberg Uncertainty Principle: Explained in Simple Words
Heisenberg’s uncertainty principle says that if we know everything about where a particle is located, we know nothing about its momentum. Conversely, if we know everything about its momentum, then we know nothing about where the particle...
Looking Glass Universe
Quantum Randomness
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...
Curated Video
The Kelvin Scale and Absolute 0: Understanding Temperature Limits
This is a lecture video that explains the Kelvin scale and absolute zero, focusing on the lower limit of temperature scales and the scale that measures relative to this limit. The video starts by introducing the Celsius scale and its...
Virtually Passed
Work Energy proof part 4
In this video I generalize the formula derived from the previous 3 videos, define Mechanical Energy and talk briefly about conservative and non conservative forces. Note mechanical energy is conserved if no forces (other than gravity and...
FuseSchool
Matter Exam Question 2
Work through this practice GCSE / K12 question on atomic number, atomic mass and electronic configuration. Read the question, and hit pause if you want to try answering it yourself. Then hit play again to watch how the teacher solves it.