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The Size of Things
Powers of Ten: Powers of Ten
Hubble Video: Most Distant Galaxies Ever Seen
Why is a Mile a Mile Long? 5280 Feet in a Mile
Unusual Units: Decimal Time, Anyone?
Even More Unusual Units: Furlong/Firkin/Fortnight System
The Scale of the Universe: Zoom Out!
The Size of Planets and More Interactive Space
What Does a kg Weigh? Redefining the Kilogram
One More Time: Re-Redefining the Kilogram
Motion
Perpetual Motion Machines! Not! EC for writing a few paragraphs which explain why these
aren't real PPMs. Hint: look for their energy sources!
Rotational Inertia Spin It Up Imperial College Style!
More Rotational Inertia Spin It Once More!
Spinning T-Handles: Watch Them Flip!
More Spinning Handles: Why They Flip
How Your Car Spins Those Wheels! Differential Gears
How A Train Spins Its Wheel A Different Differential
Car Safety 2009 Malibu Meets 1959 Bel Aire
Really Small Car Safety Crash a Smart Car! 3:50 in
Why Don't Those Bulbs Break? A Light-Bulb Newton's Cradle
Rube Goldberg Machine: Watch It Go!
Slinky Drop: Does it All Fall Together?
GIANT Slinky Drop: Supersized!
Soccer Ball Drop: Velocities "Cancel"
Helicopter Pilot: He Really Knows His Inertia!
It Uses Rotational Inertia: The Easy Way to Chop Firewood
A Feather Drops: In the World's Biggest Vacuum Chamber
What If the Earth Stopped Spinning?
What Would Happen to the Earth If Everybody Jumped at Once?
What Happens when Your Helicopter Runs Out of Gas Land Safely with Autorotation!
How Long Would It Take to Fall Through the Earth? Dig a DEEP Hole!
The Heated Snowboard: Will It Go Faster?
Cars Upside Down: In the Globe of Death!
Conservation of Spring Energy: Flatten a Baseballl!
Zero-g Airplane: Dive Really Fast
Water Rolls Uphill: On a Ridged Ramp
The Physics of Football: Don't You Really Mean Soccer?
The Physics of Ballet: Welcome to Swan Lake
Drop a Penny From the Empire State Building!
A Ptolemaic Orrery Retrograde Motion!
A Very Strange Bicycle The Mechano-Wheel Bike
Animation versus Physics
The McMurty Speirling: It Corners Like a Cartoon!
Rockets, Space and Time
Parachutes in Space! Article on Solar Sails
Apollo 11 Launch: TV Footage from 1969
Apollo 11 Launch: Official NASA Footage
Apollo 11 Launch: Apollo 11 at 500 frames per second
Solar Eclipse: July 11 2010
Mass Bends Space and Time: Gravity Probe B
Kepler's Second Law Animation: Kepler's Second
Time Dilation: 1941 Muon Decay Experiment: Frisch and Smith
How to Travel Faster Than the Speed of Light
Washcloth in Space! Where Does the Water Go?
On the Space Station: Watch That Spin!
Death of a Black Hole: They Evaporate!
What Causes Mass? What Is a Higgs Boson?
Light from the Early Universe: Gravitational Waves! More Gravitational Waves
Will Pluto Be Promoted Back to "Planet"? The Debate Rages On!
Neutron Stars: Do They Really Slosh Inside?
Water in Space: Forms a Sphere!
What Would Happen If the Sun Disappeared?
Re-Entry by Rocket: Blue Horizons Nov 23, 2015
Special Relativity: Why You Can Never Reach the Speed of Light
Water on the Surface of the Moon: Who Knew?
The Brightest Thing in the Universe: It's Not the Sun!
Gravity on Other Planets: Flattens a Car!
Satellite Tracker: Why Don't They Collide?
Smaller Than the Real Thing: Builid an Origami Webb Telescope
Does Time Cause Gravity? Strange Theories!
Destroy a Black Hole As If!
Harmonic Motion, Music and Sound
Resonance in Bridges: Galloping Gertie
Simple Harmonic Motion: SHM Simulator
Supersonic Shock Waves
Standing Waves in an Upright Bass: Watch Those Nodes!
Water Seems to Flow Uphill: 24 Hz Sound vs. 24-Hz Video
Floating Balls of Water! Nodes and Acoustic Levitation
Strange Resonances: Tuvan Throat Singers
Nodes in a Metal Plate: A Boy and His Node
Watch it Splash: Subwoofer versus Water
Music and Fire Together: 2-D Ruben's Tube
The Sonic Fire Extinguisher: Pump Up the Bass!
All About Sound: Including the Sonic Death Ray!
Play Some Music: On Your Tesla Coil!
How 'bout More Music: On Another Tesla Coil!
Resonance in a Mexican Restaurant Seven Antinodes, 6.5 cm, Diameter
Singing Rocks Sound Travels Fast in Rock!
The Physics of Playing Guitar Sounds Good to Me!
What Does a Sounds Look Like? Schlieren Visualization
Cymatics Rubens' Tube: See the Nodes!
More sound visualization: Tubo de Rubens
Resonance in a Plate: Crazy Patterns!
Heat and Pressure
Cannonball and Mercury Cannonball
Bubbles! Cavitation
Freezing Liquid Nitrogen! Use a Vacuum!
Boiling Water Freezes! Instantly! Home-Made Version: Fargo Frost 12-31-17
Ping-Pong Ball In Liquid Nitrogen!
Reduce That Pressure: Water Vapor Condenses in a Can!
Now in the Larger Size: Big Time
Hot Shuttle Tiles: How About a Little Fire, Scarecrow?
Feynman Explains the Rubber Band: They Heat When They Stretch!
Chemical Reaction: It Makes Snakes!
Giant Bubbles: With Dry Ice!
Supercooled Water Freezes, Courtesy Chris Lallemand Chilly!
Weirdness on negative temperature, submitted by Nick Smith: Wikipedia Article NASA Article
Cold Cold Sodium: Nanokelvin Temperatures
Is Glass a Liquid? Watch Pitch Flow!
Sonoluminescence: A Star in a Jar!
The Fahrenheit Scale: The Real Story!
Making Liquid Oxygen Do Not Try This At Home!
The Rubber Band Refrigerator Who Knew?
Make an Instant Slushee: Supercooled Liquid
Leidenfrost Ladders: Water Cliimbs Uphill!
It's Dense: Metallic Hydrogen
It Glows on Its Own: Black Body Radiation
Heat Your Coffee with Thermite! Toasty Warm!
Why Railroads Don't Need Expansion Joints: Very Clever Design!
Light and Vision
Why Does a Mirror Reverse Things? Answer: It Doesn't!
There Is No Pink Light! No Pink Light
Fun with Lasers: Green Laser vs. Flammable Vapors
The Speed of LIght: Is the Speed of Light Really Constant?
It Burns! The Solar "Death Ray"
It Turns! Angular Momentum of Light Photons
It Bends! Total Internal Reflection
It Interferes! Double-Slit Interference
It Hides! The Speed of Dark
Photon versus Itself Quantum Interference
Schlieren Optics at Foothill: Visible Refraction!
Webb Telescope Goes to Work: Webb Telescope 2022
NPR Schlieren Optics: See Sound in Motion!
Electricity and Magnetism
Milliken Oil Drop Experiment: Milliken On Video
Lightning Strike: Strike Two!
Uber Lightning Strike: Ka-pow!
Magnet Tops! Spinning Hexagons!
Loads of Lightning on Vimeo See the Return Strike!
Straight Out of the Deep South: "Sweet Home Alabama" on the Tesla Coil
Sparks from Falling Water: Kelvin's Thunderstorm
Melt Metal with Magnets: Toasty!
Sending Sparks: With a "Small" Tesla Coil
What NOT to Do with an MRI Machine Throw in a Chair!
Light an LED With a Magnet
How Does Electricity Become Magnetism? Magnetism Meets Special Relativity
How Do Permanent Magnets Work? Battling Domains!
Just What is a Magnetic Force? Richard Feynmann Explains!
Homopolar Motors Simple and Fast!
The Magnetic Accelerator How Does It Work?
Superconducting Magnets and Ferrofluid A Magnetic Porcupine!
Spinning Bowl of Mercury! The Fabulous Mercury Vortex
Electricity Doesn't Really Flow Very Much! It's Really the Field!
Real Scientific Debate! The Rebuttal to the Rebuttal Videos on "It's Really the Field"
Miscellaneous
Knowing Versus Describing: Feinmann Speaks
Keyboards That Appear When Needed! Tactile Keyboards
How to Build Fun and Weird Projects: Storm the Castle! Make Magazine
Hydrophobic Coatings: Really Really Repels Water!
Making Atoms Dance: A Boy and His Atom
"Tear a Hole in Time!" With Undetectable Secret Messages
Snowflakes: Close-Ups!
Meet the Q-Bit Quantum Computers
More Uses for Mercury Fill a Water Balloon!
Can You Walk on Mercury? Maybe!
More on the Deadly Mantis Shrimp Supersonic Claws!
The Design of the Aluminum Can Make It Thinner!
Quantum Effects Erase the Past!
What Is the Present? Time Delay!
Momentum and Pi: Unexpected Counting Puzzle - Part 1
More Momentum and Pi: Unexpected Counting Puzzle - Part 2
More More Momentum and Pi: Unexpected Counting Puzzle - Part 3
Strange Explanations for All Sorts of Things You Never Even Thought to Wonder About: Kurtzgesagt Channel
Everything Explained to Five Levels of Understanding! Simple to Complex
Is It OK to Touch Mars? Maybe!
Floating Objects! Tensegrity Structures
It's a Mystery! Three Perplexing Problems
The Physics of Pizza Slice It Up!
Turbojet to Scramjet Jet Engines for Hypersonic Flight
How Railroad Crossings Work: Automatic Signaling 101
Plate Tectonics: 2 x 10^9 Years