Is it play or is it research? either way it’s fun playing with a thermal imaging camera. It really does show you things you can’t see with the naked eye. Analysing products to see their thermal profile reveals so much about their heat generating properties and heat loss behaviour. It’s something you just can’t see without a camera. No number of thermocouples or thermometers will show something like this foot-heat shot. These kinds of cameras are being used by the police to find discarded stolen wallets, drugs and even to find flashers in the park! I’d rather not see what those images look like!