Just this once, I'll allow you to feel sorry for me, as I have been in bed with a nasty cold for the last 48 hours. Kath has been playing Florence Nightingale, so I am well looked after.
Anyhow, enough of my troubles, here's what I think caused the sudden leap in the temperature graph I described in my previous post. Well, when I say "I think" what I really mean is "what our Peter tells me" 'cos he is a professional scientist and I am not. When we took the gubbins out of the freezer, it immediately got covered in condensation, which briefly froze, the room being a lot more humid than the freezer. Now we all know that when water evaporates it cools things down (like when we perspire), well it does the opposite when it condenses and freezes, releasing latent heat, so our temperature sensor got a good dose of that heat when the water in the air condensed upon it. So that's the answer. Don't say I don't try to teach you anything. Full marks to Bill S who got it spot on. The rest of you, read and inwardly digest and you will become wiser people.
We're hoping next week to take Herbie out for a few days, maybe dowln to sunny Brentford if there is room down there, or at least to the rather wonderful Fox pub at Hanwell. I may well do a bit of towpath rangering while we are down there as it is on my official patch. I keep meaning to go to the musical useful at Brentford. I'm partial to a bit of mighty Wurlitzer. Has anyone been?