There's No Such Thing As Cold
AdultsPhysicsWeatherScience...You've felt cold before. Sometimes it's cold outside. But what if I told you that "cold" isn't real? There's no substance or quantity called "cold" in science. We can't measure the amount of "cold" in something. Instead it's about what's NOT there. In this week's video, learn the difference between heat and temperature, why a wind makes us feel colder, and what it's like to live as a mass of jiggling atoms. This is the physics of cold.
Sparks from Falling Water: Kelvin's Thunderstorm
AdultsPhysicsTechnologyScience...The physics behind Kelvin's Thunderstorm explained. No, it is not a practical way of generating electricity, which is why we use turbines at hydro stations.
Why Does Time Go Forward?
AdultsFuturePhilosophyScience...The past is different from the future. Why?
How many universes are there?
AdultsScienceSpacePhysics...The fact that no one knows the answer to this question is what makes it exciting. The story of physics has been one of an ever-expanding understanding of the sheer scale of reality, to the point where physicists are now postulating that there may be far more universes than just our own. Chris Anderson explores the thrilling implications of this idea.
Why Van Gogh's "Starry Night" Is Actually An Art Of Science
AdultsArtSciencePhysicsPhysicist Werner Heisenberg said, "When I meet God, I am going to ask him two questions: why relativity? And why turbulence? I really believe he will have an answer for the first." As difficult as turbulence is to understand mathematically, we can use art to depict the way it looks. Natalya St. Clair illustrates how Van Gogh captured this deep mystery of movement, fluid and light in his work.
Brian Cox visits the world's biggest vacuum chamber
AdultsPhysicsScienceExperimentsWatch a bowling ball and a feather fall in the giant vacuum chamber. A simple experiment but it's really amazing.
These Amazing Energy Facts Will Blow Your Mind
AdultsData SciencePhysicsEnergy...1 calorie = 4.2 joules, wait what?!
5 Fun Physics Phenomena
AdultsHumorInternet CulturePhysics...YouTuber Veritasium explains 5 weird but cool tricks about Physics in the latest video.
Why is ketchup so hard to pour?
AdultsFoodPhysicsScienceEver go to pour ketchup on your fries...and nothing comes out? Or the opposite happens, and your plate is suddenly swimming in a sea of red? George Zaidan describes the physics behind this frustrating phenomenon, explaining how ketchup and other non-Newtonian fluids can suddenly transition from solid to liquid and back again.
Anti-Gravity Wheel Explained
AdultsPhysicsScienceEngineering...It's a little shaky but if you average out the oscillations I think the result is clear. Again, huge thank you's to A/Prof Emeritus Rod Cross, Helen Georgiou, Alex Yeung, and Chris Stewart, the University of Sydney Mechanical Engineering shop, Duncan and co. Ralph and the School of Physics.
Anti-Gravity Wheel?
AdultsInternet CulturePhysicsExperiments...In this video I attempt to lift a 19kg (42 lbs) wheel over my head one-handed while it's spinning at a few thousand RPM. This replicates an earlier experiment by Professor Eric Laithwaite. He claimed the wheel was 'light as a feather' and could not be explained by Newton's Laws. I wanted to find out for myself what I really felt like.
When Water Flows Uphill
AdultsPhysicsScienceCooking...In the Leidenfrost Effect, a water droplet will float on a layer of its own vapor if heated to certain temperature. This common cooking phenomenon takes center stage in a series of playful experiments by physicists at the University of Bath, who discovered new and fun means to manipulate the movement of water.
Amazing Water & Sound Experiment
AdultsPhysicsScienceExperiments...The effect that you are seeing can't be seen with the naked eye. The effect only works through the camera. However, there is a version of the project you can do where the effect would be visible with the naked eye.