Generating electricity from dripping water. The Kelvin Generator. UZH Physics 2021-06-15 | Did you know you can create kilovolts of electric potential just by dripping water slowly into a bucket ? Find out how in this video.
XLZD: The birth of a dark matter detector UZH Physics 2025-10-23 | Scenes from the first collaboration meeting of XLZD: a group of world-leading physicists coming together to build the world's most sensitive dark matter detector yet. The meeting took place at the Laboratori Nazionali del Gran Sasso in the summer of 2025 and involved 3 days of talks, a poster session and even a visit to the world's biggest underground lab.Find more about dark matter and how XLZD hopes to detect it at:www.xlzd.orgMusic: “The Fun of It (Instrumental)”Performed by Public Service Broadcasting @PSBHQ Special thanks to:LNGS www.lngs.infn.itfor hosting this meetingand Mute Song Ltd, SO Recordings & Public Service Broadcasting www.publicservicebroadcasting.netfor permission to use their music
Ballistic Pendulum UZH Physics 2023-10-05 | What happens when you shoot a bullet into a pendulum? This introductory physics demonstration shows the concepts of momentum conservation, energy conservation, potential energy and kinetic energy at work. With a bang.
Lets get radioactive! UZH Physics 2021-07-03 | Here we have a 137-Cs source, which emits electrons called betas. We can count the radiation that is emitted with a Geiger Mueller counter. Using a magnet, can we bend the radiation around an obstacle.
Levitating a fluid with electricity UZH Physics 2021-06-29 | The electric field strength changes with and without a material in between. Can we use this effect to levitate a fluid ?
Watch hysteresis of different materials in real time UZH Physics 2021-06-28 | Materials can be magnetized and this magnetization is like a memory that can be erased. Here we magnetize and demagnetize different materials many times a second and watch this residual magnetic memory, known as hysteresis. We look at various types of steel, iron, nickel, and ferrite.
Rolling an aluminum rod using a magnetic field. UZH Physics 2021-06-28 | Putting a current through a piece of metal will make it magically feel the force of a magnetic field.
Magnetizing stubborn nails with liquid nitrogen UZH Physics 2021-06-27 | Magnetization improves at low temperature and atoms can be aligned better. Find out how and watch it happen.
Anti-gravity machine using magnets ? UZH Physics 2021-06-27 | Gravity is a force that pulls everything towards the earth in the same way. But magnets can fall slower if we make use of Faraday's law or Lenz's law.
Bending aluminum with a magnet. UZH Physics 2021-06-25 | Aluminum is not normally magnetic, but we can make it feel a magnetic force if we run electric current through it and put it in a magnetic field. Then we can see it move from the Lorentz force.
Levitating a piece of carbon UZH Physics 2021-06-16 | Diamagnetic materials have strange properties that allow them to float in a magnetic field. Superconductors are perfect diamagnets, but even a piece of graphite, which is just carbon, can be made to float.
Bending a beam of charged particles with a magnet UZH Physics 2021-06-16 | A beam of charged particles will bend in a magnetic field. If you need to see it to believe it, this is the right video to watch.
Making electric cables repel or attract UZH Physics 2021-06-16 | How do you make two wires repel or attract as if they were magnets.Electric current generates a magnetic field, which makes a Lorentz force.
The rising fiery spark. UZH Physics 2021-06-16 | With an induction coil, we can generate a fiery hot spark that rises. Don't try this at home, kids.
The biggest spark : capacitors in parallel or in series ? UZH Physics 2021-06-16 | Watch Prof.K risk his life and limb to show how capacitors store and discharge energy. Capacitors can be linked in series or in parallel, but store different amounts of energy. Let's find out which way generates the biggest spark.
Electric charge jumps from one conductor to another. UZH Physics 2021-06-15 | One electrically charged object can share its charge with another object it touches. But can we make *all* of the charge jump to the other object ? Find out how. This trick uses induction and conduction, and is known as Faraday's ice pail.
Playing tennis with charged bubbles! UZH Physics 2021-06-15 | Watch Prof. K and his assistant play "electrostatic tennis" without actually touching the bubbles !
Generate electricity from the earths magnetic field with a jump rope ? UZH Physics 2021-06-15 | One can generate electricity from changing the magnetic flux. But can we do it with the earth's magnetic field and a jump rope ? Sounds crazy !
The jumping ring and Eddy currents. UZH Physics 2021-06-15 | Electric currents generate magnetic fields. A piece of material that conducts electricity will briefly turn into a magnet if it is exposed to another material with a changing magnetic field. This is an example of Faraday's law and Lenz's law.
Generating 1100V using a 9V battery! UZH Physics 2021-06-15 | Parallel plate capacitors store electrical energy. Find out how to manipulate them to charge a capacitor up to kilovolts with only a 9-volt battery.
Introduction to Its not magic, its physics! UZH Physics 2021-06-15 | Learn about the behind-the-scenes magic of physics. Prof. K introduces this series of videos.
