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Digging the dirt with diffraction

Environmental scientists are using X-ray diffraction to explore new ways of dealing with contaminated soil, and have found that earthworms are playing an unexpected role in reducing the effects of contamination

Figure 1 Diffraction of sound waves

The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.

Ideas about the behaviour of waves, including superposition, phase and path difference, are all important in understanding the technique of X-ray diffraction.

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Previous

Fibres, fluids and Fermi

Next

Seeing inside the body

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