Topic: demonstration

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How to make a Hollow Mask Illusion

How do we perceive faces? With some balloons, newspaper, some paste for paper mâché, and paints, you can create a hollow mask that appears to follow you as you move back and forth around the room. Rachel and her child...

How does a tunnel boring machine work?

How are new subway tunnels constructed underneath a busy city like Barcelona, Spain? This promotional animation demonstrates how a tunnel boring machine—specifically a Herrenknecht TBM with an Earth Pressure Balance S...

Make Lissajous patterns with DIY sand pendulums or light

Sand pendulums are an easy and beautiful method for students of all ages to learn a bit about the harmonic motion. These devices are easy to build and can be adjusted to give a variety of patterns. A pendulum that beg...

Electromagnetic Levitation Quadcopter

On a visit to Hyperloop One, a Los Angeles-based team working to create a near-vacuum tube-based transportation system, Veratasium's Derek Muller got to check out this Electromagnetic Levitation Quadcopter demo. In th...

What can you do with a large neodymium magnet?

Neodymium magnets are really strong. The larger they get, the more careful you need to be to avoid being pinched or struck from the force of their attraction. This video from Magnetic Games cautiously explores what ca...

Two professors sculpt each other in less than ten minutes

Watch in real time as Professor Cao Chang Xu of Beijing's Central Academy of Fine Arts (CAFA) and Professor Sarath Chandrajeewa of Sri Lanka's University of Visual and Performing Arts go head to head in a friendly fac...

A home made string shooter & slow moving waves in rope

This string shooter uses two wheels on motors to push a string forward while a tube guides the string back through the wheels, creating a constant loop that appears to defy gravity and demonstrates wave phenomena. ...

Can bumblebees teach each other to pull a string?

This worker bumblebee has been taught that if she pulls the string, she'll be able to get to the artificial blue flower's sucrose solution center. Scientists from the Bee Behavioural and Sensory Ecology Lab at Queen M...

How to Design a Particle Accelerator

What is a particle accelerator and how would you go about designing one? We've heard of the Large Hadron Collider at CERN, but what of the tens of thousands of other accelerators being used in science and medicine? ...

Evolutionary branching in action: Bacteria adapt to antibiotics

Watch E. coli bacteria encounter increasing strengths of antibiotics, the medicine that we use to fight infections or infectious diseases. A team led by Harvard Medical School's Michael Baym set up the video demonstra...

The Guillemot egg, an egg that saves its own life

Guillemots are sea birds that reside in crowded colonies on rocky cliff sides. When they breed, they produce one conical egg which incubates for around 30 days on the precarious cliffside... but guillemots don't make ...

A physical demonstration of gravitational waves

Start with the classic lycra space-time warping demo, add in news of LIGO and The First Observation of Gravitational Waves, then mix it with a drill. In this Ultimate Gravitational Waves Explanation, Steve Mould creat...

Plastic bottle water wheel power generator experiment

Power plant operator and YouTuber 'Thomas Kim' can charge his iPhone using a stream and a DIY hydro-electric generator made from plastic bottles, some disposable plates, a 3 phase stepping motor, and a rectifier circu...

Science Extras from Jiwi’s (Rube Goldberg) Machines

A YouTube series that hearkens back to characters and situations from old silent films, Jiwi's Machines mixes a love for Rube Goldberg Machines with an ode to comedy greats like Charlie Chaplin or Buster Keaton. T...

Can you solve the locker riddle? – TED Ed

File under factors, multiples, square numbers, prime numbers, and sequences: This classic mystery novel set up has a wonderful math puzzle twist: Your rich, eccentric uncle just passed away, and you and your 99 na...

How do we know what stars are made of?

How do astronomers know what stars are made of when those stars are light years away from Earth? These demonstrations by Dr Francisco Diego reveal the colors of light that are produced from sodium chloride, rubidium c...

What happens when you put marshmallows in a vacuum?

Thanks to this hand pump vacuum sealer demo, we can see how these four fluffy marshmallows will react when the air is pumped out of their clear container. Poof, poof, poof! What's going on here? From Physics.org: ...

Circular motion demonstration with a sparkler & a hula hoop

From physics teacher and film maker Alom Shaha, check out these simple demonstrations showing how something moving in a circle will move in a straight line when you remove the centripetal force acting upon that thing....

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