Resistance Is Futile

I will bravely assume that any electrical apparatus in your household does not have a 100% energy efficiency, i.e. the useful energy you obtain is less than the energy you put in. It is obviously preferred to have 100% efficiency because not only do you get more out of your money, but it also saves more fossil fuels, a finite resource. Energy inefficiency is an issue that has plagued the civilisation for centuries, and scientists strive to find ways of obtaining maximum efficiency wherever possible.

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Get Cracking!

In February earlier this year, Yanhao, a few other people and myself attended a national physics competition (ooh I know, fancy) in London hosted by the Weizmann Institute of Science. This competition required the teams to design and build a safe which would be able to be cracked using various physics principles. For example, the ‘crackers’ may have to construct an electromagnet using various materials in order to attract an object, and this could open the safe or something.

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