Did some more experiments today using food colouring.
The photos below are lit using an over head projector just to show the colours more clearly although the reds/pinks/purples are difficult to show.I forgot to take my camera to uni so these are from my iPhone but they are good enough for now.I've got a review on Thursday so I'm going to see if I can order some more test tubes I'm not sure I want 4,000 yet but Vicky who sent me the free samples wrote me a lovely note saying if I needed anything to contact her, so I will get in touch with her and see if I can get hold of 100 just to create one long spectrum to see what it looks like (hopefully as good as I think it will in my head) Plus make a rack of some kind soon and hopefully get a tutorial and see what my lecturers think!
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