My mother and I have planned a somewhat last-minute trip to Scotland and we just discovered the Carols at the Castle event at Stirling Castle on the 15th. It is, of course, wildly popular and already sold out. Where might an enterprising couple of ladies manage to find tickets from those who have purchased them but no longer want/can use them? In the US I'd look on Craigslist for something like this, but that doesn't seem to be a popular option here in the UK. Gumtree hasn't given me anything either. Any way for us to track them down, or is it a sadly lost cause?
How do I, using common household tools and objects, determine the (variable) RPM of a fan? [more inside]
[DifficultGiftFilter] My fiancé is one of those techie guys (software architect/developer) who already has all the latest gadgets and is generally hard to shop for. However, one of his most prized possessions is a beautiful little stirling engine. What are some other cool little machines that he might appreciate? [more inside]