Tampons are awesome.
Not only do they make periods less messy, more manageable and allow you to go swimming, they have a huge number of other uses.
Now engineers from the University of Sheffield have discovered that glow-in-the-dark tampons can be used to stop sewage leaking into rivers.
The untreated white cotton used in tampons glows under UV light when they're soaked in dirty or polluted river water.
