Wednesday 5 June 2024

Slide Rule


 How does a slide Rule work? I created a number line slide rule with two rulers as an example, then raced students with a calculator, showing that some old technology has some advantages, especially when you don't need 9 or 10 sig figs.

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Determining molecular mass

  Heating a gas syringe to 100C using steam from a steam generator and then adding a known mass of a volatile liquid allows us to determine ...