Marcus’s Posts

Bad light stopped play

One of the top challenges for physics in the modern era, along with Climate Change and explaining Dark Energy, has to be fixing the problem of bad light*. (I’m talking cricket – what else?) It’s a quintessentially English problem. It’s not raining, the pitch is perfectly playable, the spectators (COVID-19 notwithstanding) are enjoying themselves, but […]

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The Beirut explosion shockwave

That was clearly a huge explosion. https://www.nzherald.co.nz/world/news/article.cfm?c_id=2&objectid=12354134 Just after the explosion, we see a cloud of ‘fog’ moving outwards at high speed. This is a shockwave, rather similar to that which causes a sonic boom. The ‘fog’ is caused by water condensing from the atmosphere in areas of intense low pressure and temperature, and parallels […]

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All-pervading Waikato dampness

Yesterday we arrived back in Cambridge after a few days holiday in Auckland, being tourists. We sampled such delights as the unheated hotel swimming pool,  the complicated and expensive process of getting on a bus (basically having to find somewhere from which to buy a HOP card, for a non-refundable $10 a card), the completely […]

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Teaching physics without the physic[al]

As we emerge from ‘lockdown’* it’s time to start reflecting on how we, as a tertiary teaching establishment, have been continuing to provide quality teaching to our learners. Like most places, The University of Waikato has a rapid transition to online teaching. From what I hear from colleagues and students, through official and unofficial channels, […]

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