To what sort of things do you apply your maths?

Question: To what sort of things do you apply your maths?
- Keywords:
  application,
  maths,
  research
Asked by aidanowens to Cathal on 13 Nov 2013.
- Cathal Cummins answered on 13 Nov 2013:
  
  I used mathematics to show why Guinness bubbles sink but Heineken bubbles float!
  
  Generally speaking, I use mathematics to investigate how fluids move.

Question: To what sort of things do you apply your maths?