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hermitcrab
3 months ago
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Bletchley code breaker Betty Webb dies aged 101
The author of this book also runs an excellent weekly maths newsletter/quiz for 11-16 year olds, and it's free:
https://parallel.org.uk/parallelograms
Consider applying for YC's Fall 2025 batch! Applications are open till Aug 4
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https://parallel.org.uk/parallelograms