Faraday Cage: using a foil Twisties packet to hide from your boss

There’s been a lot of news about the electrician who got busted hiding his phone/PDA in a foil Twisties packet to prevent his company from tracking him… so he could go play golf.

So I decided to give it a whirl, in some chocolate wrapper. And then try out the microwave. but that wasn’t so successful!

 

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Sound and fire = complicated!

The Rubens Tube is a really complicated demo that seems simple. Once you start thinking about it you realise that sound antinodes are points of oscillating pressure, so the flames shouldn’t be stable peaks – they should be going up and down at the frequency of the wave!

And if you change the gas pressure a lot the nodes and antinodes reverse position! Wish I’d thought these points through before Derek asked me to film this!

 

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Using antimatter to find weirdo supernovae

Fiona Panther is searching out galaxy for antimatter – no it’s not science fiction, she’s after anti – electrons, called positrons. It’ll help her to study supernovae – exploding stars.

Fi is a PhD student at ANU Research School of Astronomy and Astrophysics, Mt Stromlo.

Filmed at Physics in the Pub, 2016, Smith’s Alternative. Supported by Australian Institute of Physics and National Science Week.

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How to study Astronomy with a balloon

We know PhD students like to do things on the cheap… well Ryan Ridden-Harper is doing high altitude astronomy – like the Hubble space telescope – but with no expensive satellite, just a weather balloon. He hopes it will give nice cheap insights into dark energy!

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