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Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.
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PhD student Daniel Kreuter tells us about his work on the BloodCounts! project, which uses maths to make optimal use of the billions of blood tests performed every year around the globe.
It is true that in the traditional doubleslit experiment the detectors were placed at the slits in order to observe the particle like behaviour. The writer is referring to the set up for Wheeler's delayed choice experiment, when the detectors are actually placed behind the screen and the decision of whether you would raise the screen (and hence detect which slit the photon passed through) is made after the photons have passed through the slits. Do you think we should make it clearer that this is different from the traditional set up? Let us know and we'll have another look at the article.