Another Thunderfoot video, but this time about one of the early ‘battles of science’ during the 2nd World War. It is a longish watch but stick at it. He eventually builds a working, kitchen-table experiment to show how the British finally neutralised the threat. It also raises lots of simple scientific ideas that I will quiz you about lower down the page.
Questions…
- Apart from its low density, why else is the detonator built from aluminium?
- V2 uses ethanol and liquid oxygen as fuel. What waste products would you expect it to produce as it burns?
- What was Sun Tzu’s famous book on the philosophy and strategy of warfare called?
- Why does water with salt dissolved in it conduct electricity, whilst pure water does not?
- What is the unit of electric current?
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