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Physics Educational Videos

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See video Cymatics: Geometric Sound Patterns

An interesting experiment which shows sand on a vibrating metal plate forming various geometric patterns as a result of changing frequencies. Warning: it is a good idea to lower your volume before watching this video.

2:05 27 2.30
See video Chill A Coke In 2 Minutes

Put it in a bowl of ice, water, and salt. The salt lowers the freezing point of water.

0:00 1707 2.70
See video Spraying hot water at -20 degrees Fahrenheit

When you squirt boiling water at -20 degrees Fahrenheit (-29 degrees Celsius) it instantly turns into snow (flash frozen).

0:26 347 2.71
See video Synchronisation of 5 coupled metronomes

Synchronisation of 5 coupled metronomes done in Lancaster University, Physics Dep, Nonlinear dynamics and medical physics group.

1:24 1107 2.85
See video A solid that is lighter than air - SEAgel Aerogel

Aerogel (aka frozen or solid smoke) is the lightest solid ever made. It is used for thermal insulation and by NASA to trap space dust particles. This video demonstrates SEAgel, which is so light it can be lifted with static electricity.

1:12 274 3.40
See video Cloud gravity waves

Gravity waves (not to be confused with gravitational waves) are waves generated at the interface between two media, for example the ripples created by a rock thrown into a pond. In the atmosphere, it is the result of air rising and sinking, gradually moving back towards its equilibrium point.

0:32 624 3.50
See video Magic Trick Cartesian Diver

How to make a Cartesian Diver which seemingly floats or sinks upon command. Demonstrates the principles of density and bouyency.

0:00 88 3.70
See video Scotch tape makes opaque glass transparent

The glass is opaque because it is etched, and light scatters on the rough surface. The glue in the scotch tape fills in any regularities and allows light to pass through with little scattering.

0:20 1194 3.77
See video Ferrofluid: Magnetic Liquid

Digitally controlled magnetic liquid sculptures. The liquid is known as ferrofluid, a liquid that becomes strongly polarised when in the presence of a magnetic field.

0:00 245 4.00
See video Rare Isotope Rap by AlpineKat

Another great rap video from science rapper Alpinekat (Katie McAlpine), this time about the $500 million Facility for Rare Isotope Beams (F-RIB).

5:12 60 4.08
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