Schools

Answers for Allensbank

The other week I gave a talk at Allensbank Primary School – a nearby school for children aged 4 to 11. I mainly told them about the planets and the Solar System but obviously we got onto other topics too. We had a fun questions and answers session at the end but there is never […]

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Exploring Liquids: An Experiment

Here’s a fun experiment you can try using the contents of your kitchen cupboard. Explore the effects of different densities and learn about refraction, viscosity and the planet Jupiter. You’ll need five different liquids; I used golden syrup, dishwashing liquid, water, alcohol and vegetable oil. I also used some food colouring to make it easier […]

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Glowing Samples

I’ve not much to say about this other than that it is a very cool image. I took it on Wednesday during Cardiff University’s Dragonfly Day. As well as making our own spectrometers there was also an experiment to deduce the contents of several mystery cups. All were white or see-through liquids. Using just their […]

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Air Pressure and Coke Cans

I recently did a piece on measuring the speed of light using your microwave. Well here is some more physics you can play with in your kitchen. This time let’s create a vacuum and then use it to crush something. I like crushing things. Don’t we all? What you will need: A regular drinks can […]

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Measure the Speed of Light Using Your Microwave

Astronomers studying star formation, like myself, use telescopes that can see though the pretty, optical exteriors of nebulae into the dark interiors where very cold dust radiates in the submillimetre and microwave regimes. Microwaves, fall on the electromagnetic spectrum, between radio waves and infrared waves. They are usually around the size of a few centimetres […]

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