Bozeman Science
Kirchoff's Loop Rule
In this video Paul Andersen explains how Kirchoff's Loop Rule can be used to calculate the voltage of different components of a circuit. The sum voltage throughout an entire loop will sum to zero following the law of conservation of...
Bozeman Science
Voltage, Current and Resistance
Mr. Andersen describes the relationship between voltage, current and resistance in an electric circuit. Ohm's Law is introduced through a circuit simulation.
Crash Course
Fluids in Motion: Crash Course Physics
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water flow? And what is one of the motion annoying things about filming outside on a...
TED Talks
Mae Jemison: Teach arts and sciences together
Mae Jemison is an astronaut, a doctor, an art collector, a dancer ... Telling stories from her own education and from her time in space, she calls on educators to teach both the arts and sciences, both intuition and logic, as one -- to...
Bozeman Science
Potential and Kinetic Energy
Mr. Andersen explains the difference between potential and kinetic gravitational energy. He also uses physics to calculate the energy in various objects.
Crash Course
Voltage, Electric Energy, and Capacitors: Crash Course Physics
So, how do those defibrillators you see on TV actually work? Surprise! Physics can explain! Okay buckle up, everyone! Today, Shini has the task of breaking down Electrical Potential Energy, Electric Potential, Voltage, Capacitors, Energy...
Bozeman Science
ATP: Adenosine Triphosphate
Paul Andersen explains the structure, function and importance of adenosine triphosphate (ATP). He begins by describing the specific structure of the molecule and its three main parts: adenine, ribose sugar, and phosphate groups. He...
Curated Video
How Planetary Rings Pull You In: Gravitational Force & Speed Explained
New ReviewExplore how the gravitational force and potential energy behave along the central axis of a planet’s ring system. Learn how symmetry simplifies the math and how energy conservation reveals the particle’s speed through the ring’s center.
Curated Video
Why Do Satellites Shift from Circular to Elliptical Orbits?
New ReviewWhat happens when a satellite slows down in orbit? Learn how a small Δv transforms a circular path into an elliptical orbit, with step-by-step analysis of orbital energy, period, and arrival timing.
Curated Video
Representing Energy with Graphs
New Review2 minute video Graphing Energy - potential energy, kinetic energy and mechanical energy, for middle school science
Curated Video
Why Atoms Form Molecules: The Quantum Basis of Chemical Bonds
New ReviewVideo on QM of Atoms which may clarify some concepts: • The Quantum Mechanical model of an atom. W... Why do atoms combine to form molecules? The quantum mechanics of chemical bonds and chemistry. How is it that we can have so many...
Curated Video
What Is the True Source of Mass? The Surprising Science
New ReviewWhat is Mass? And Where Does it come from? It's source is going to blow you away! It's (mostly) NOT from the Higgs Field. We tend to think of mass as weight? So for example, you might weigh a 150 lbs. An elephant might weigh 12,000 lbs....
Curated Video
Why Entropy and Time Move Forward: A Scientific Explanation
New ReviewWhat drives natural phenomena? Why does entropy only increase or stay the same. Why does a pencil on its tip fall to the table? Things always tend towards their lowest energy state. Why is nature driven this way? A simple way to think of...
Curated Video
The Mathematical Basis of All Matter Comes From This Useless Equation
New ReviewThe Dirac equation holds the secrets to everything that we can see in the universe. In this video, I show how with this equation, we can start with a completely empty universe, make just one assumption, ask just one simple question, and...
Curated Video
Quantum Physics of Chemical Energy: Endothermic & Exothermic Reactions
New ReviewSUMMARY In this video, I show Why Some Reactions EXPLODE and Others COOL: Root Cause of Chemical EnergyI I show how the chemistry behind endothermic and exothermic reactions can be traced to the underlying quantum physics. When molecules...
Curated Video
Is the Higgs Field Unstable? The Concept of Vacuum Decay
New ReviewCould the universe be in a metastable, or false vacuum state? Could there be a looming vacuum catastrophe waiting to happen? Is the universe doomed? This is related to the Higgs boson and the heaviest fundamental particle we know of, the...
Curated Video
Why Are Unstable Neutrons Everywhere?
New ReviewWhy to neutrons exist? You may say, this is a silly question. But the problem is that we know that free neutrons are unstable. This means that if you isolate a neutron by itself, after about 15 minutes, it will spontaneously transform...
Curated Video
How Everything Acts Like a Spring: A Physics Perspective
New ReviewSUMMARY: Why Everything in the universe is a spring (kind of). Why everything is a spring. Classical springs like you might have in your mattress have a harmonic oscillation. And this behavior has a quantum mechanical analog in what’s...
Curated Video
How Can Mass and Energy Be the Same Thing?
New ReviewSUMMARY How is mass and energy the same thing? What is mass really? If you weigh 80kg and are in a car moving 100km/hr, your energy is equal to about 30000 joules. But did you know that the energy you have standing still, not moving at...
Curated Video
A Conceptual Overview of Physics: Essential Principles to Remember
New ReviewFive areas of physics worth remembering: Classical mechanics, energy and thermodynamics, electromagnetism, Relativity, and Quantum Mechanics. Classical mechanics - two main concepts worth knowing. The first is Newton’s second law: F= ma:...
Curated Video
How Satellite Energy and Speed Depend on Orbit Radius
New ReviewExplore how a satellite’s kinetic and potential energy change as it orbits Earth—yet its total mechanical energy stays constant. Learn why speed depends solely on orbital radius, why mass doesn’t matter, and how all this ties into...
Curated Video
How to Calculate Escape Speed: Derivation of Escape Velocity Formula
New ReviewExplore the concept of escape velocity with Zog, an alien explorer, as he navigates the gravitational challenges of Planet Xyronis. This engaging story teaches about kinetic energy, gravitational potential energy, and the formula for...