why you need a gigantic swimming pool to understand something little like neutrinos

Question: why you need a gigantic swimming pool to understand something little like neutrinos
- Keywords:
  discovery,
  equipment,
  how science works,
  subatomic
Asked by super Au to Pierre on 17 Nov 2014.
- Pierre Lasorak answered on 17 Nov 2014:
  
  Hi
  This is because neutrinos don’t interact very much. So if you have big volume there is more neutrinos that cross the swimming pool and more chances that you see neutrinos!

Question: why you need a gigantic swimming pool to understand something little like neutrinos