30 cm diameter

I spent a moment confused between my diameter and my radius.

Is this my age, lack of use of the terms, brain degeneration, porridge induced torpor, all of the above, tiredness, laziness?

Cycling to work on slick tyres when the road is glistening with ice crystals demands a bit of concentration.

Great morning though - cold and dry and clear and beautiful.

Unfortunate then, that Sons #1 and #2 had an argument about Lego that had come out of the advent calendar. They are sharing one (austerity....!): one got the vehicle and one got the wheels for the vehicle... Imagine the stand-off!