# How does a calculator work?

Calculators are rather speedy at subtracting, sums and deriving standard deviations. But how do they do it? We find out in this QotW. Plus, we ask if...

12 September 2011

Presented by Diana O'Carroll.

Calculators are rather speedy at subtracting, sums and deriving standard deviations. But how do they do it? We find out in this QotW. Plus, we ask if modern medicine is affecting the human gene pool.

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### 00:00 - How does a calculator work?

Calculators are rather speedy at subtracting, sums and deriving standard deviations. But how do they do it? We find out in this QotW. Plus, we ask if modern medicine is affecting the human gene pool.&

### How does a calculator work?

Calculators are rather speedy at subtracting, sums and deriving standard deviations. But how do they do it? We find out in this QotW. Plus, we ask if modern medicine is affecting the human gene pool.

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