IOT Chip

The much talked about Internet of Things can be made with a generalist $3 WiFi chip. It has 8 pin and I talk you through the fabled ESP 8266

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The stillness of the Sun

I know I have an hour coming back on a walk, so I dive into the Sun armed with a definition of convection and we show that inner 2/3 of the Sun has everyday conduction, and is a still as a rock you heat in a fire. We find out more as we follow the energy and science around.

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80 cent lasers have their day

Just using these lasers I discover their dark secret: Some have a short lifetime.

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Multimeter to Learn With

Care is shown to rewire a multimeter so the LCD is directly above the wire it is measuring. The pesky issue of students not switching the damn thing off is solved with a tilt gravity switch that offs the device when placed face down.

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Rapid fire elements

With only few minutes left to podcast can I rate off the famous 118?

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Delivering a Dancing Duck

Short podcast while driving to deliver a rubber duck with a magnet inside that dances in an alternating magnetic field

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Simple preparation lessons

A well designed lesson can be deconstructed, analysed and derisked by preparing exercises that step through the processes in a non critical setting. In this case making the Rubber Duck dance checks off that an experiment can be plugged in and tests if it is understood that there is an alternating magnetic Field

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AQP Electrons have 720 degree symmetry_8

It is true you have to rotate an electron twice to get back to the start. It is called S2 symmetry. You can tell I enjoy the maths but I admit the explanation is terrible. The best I can do is that the electron is like a sock or glove that can be pulled inside out. In truth there is no easy way of getting to the mathematics at least that I know off.

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Tasmanian Devil_3

I found this totally amazing. It seems very solid proof of evolution and also keen reasoning on the relationship between species. I think equal spacing refered to here does not mean physical space but ecological space.

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AQP Meet the wavefunction_7

Dive into a wave-function, and have a swim around. There is a little maths but not too much.

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