Archive: Physics Stop 2012

Video: laminar flow, microorganisms and mangroves

Marcus Wilson Jun 21, 2016

This movie is a demonstration of laminar flow. My colleague Julia Mullarney used it last week in our Osborne lectures to high-school students to demonstrate what turbulent flow ISN’T. Video showing Laminar Flow and demonstrating fluid flowing in layers. This apparatus was developed by John DeMoss and Kevin Cahill of the Department of Physics & Astronomy, University … Read More

Probability madness

Marcus Wilson May 10, 2016

Probability crops up in many places in physics, not least quantum mechanics and statistical mechanics where we are only sure of things in an average or ‘statistical’ sense. Dealing with probabilities can be a headache for many students. They are also a headache for many in everyday life. There are numerous occasions where we need to estimate the likelihood of … Read More

The storm surge

Marcus Wilson Feb 26, 2016

I shudder to think what it must have been like in the path of Cyclone Winston. It is hard to conceive of winds 230 km/h sustained for minutes at a time. I remember vividly what is now known as the Great Storm of 1987 (an extra-tropical cyclone) which pulverised south-east England on 15/16 October 1987. There were (according to … Read More

Gravitational Waves

Marcus Wilson Feb 12, 2016

The big breaking physics news is the detection of gravitational waves. These waves are distortions in space-time, caused by a large mass doing something spectacular (two colliding black holes in this case)  that propagate across the universe and create tiny changes in space when they reach us. The commentary here describes what goes on. Essentially, things change … Read More

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The world’s most beautiful equation

Marcus Wilson Jan 25, 2016

Don’t miss the BBC poll on what is the world’s most beautiful equation. Are you a fan of Einstein’s field equation, or does the Riemann zeta-function hold you in raptures? There’s some great commentary on the twelve candidates here.  How did I vote? Well, that would be telling, but the fact that my very first publication … Read More

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Weighing magnetic properties

Marcus Wilson Jan 12, 2016

It’s a New Year and there are lots of things to do at work before the students get back in any numbers. There are still summer students and research students here, and in the last couple of days I’ve been working with a summer student on getting a new piece of equipment running for our Experimental Physics paper – … Read More

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