Have you ever been busy working away when someone kindly offers to make you a cup of 'loose tea' (what else!). Then what feels like moments later you prise yourself away only to discover that your tea has been sat there for 45 minutes and is stone cold. You're then left with the biggest decision of your day - make another or drink it cold?!
Both seem totally unappealing at the time...until now.
You see, this is the moment when all your physics lessons from school come in handy. Do you remember kinetic energy? It's when movement creates heat or something like that. So, since our microwave is on the blink there was only one thing for it - STIR!!!