BATWING
How to make austerity lab equipment

NO 7: THE SPECTROMETER

To Fagerhult’s excellent Light studio in southwark, where Batwing is regaled with tales of future light sources by Dr Janos Veres, the chief technology officer of Polyphotonix.

Catching Batwing’s eye (we’re not blind, remember?) was Dr Veres’ homemade spectrometer. You can make this at home boys and girls: you’ll need a CD (I can recommend Bat out of Hell), a smallish cardboard box, two razor blades and sticky tape.

Austerity spectrometer

Get a grown-up to help - Dr Veres spectrometer

Cut a 3cm high by 1cm wide slit in one end, and then align the two razor blades to create a gap of 1mm. at the opposite end, mount the CD and in the adjacent side cut a 10cm viewing hole. hold at an angle that allows light from the source to be refracted by the CD.

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