Nothing too remarkable about tonight’s #sunset. I just happen to like the three parallel #contrails. We live under two orthogonal #airways here, one running north-south and the other east-west. The latter is usually busier as it includes transatlantic air traffic.
Imagine a circular wheel rolling, without skidding, on a flat, horizontal surface. The #locus of any given point on its #circumference is called a #cycloid. It is a #periodic#curve with #period over the #circle's circumference and has #cusps whenever the point is in contact with the surface (the two sides of the curve are tangentially vertical at that point).
Today we travelled to the #CityOfBath, which is just over an hour away by train, making it suitable for a day trip. We cycled to our #RailwayStation and left our #bikes there. In #Bath, we only used pubic #buses and walked everywhere; we were lucky that although today had been planned well in advance, the weather was wonderful.
After a quick visit in the morning to the #UniversityOfBath, we spent most of our time wandering around the centre of the #city. The #RoyalCrescent has houses on its perimeter, curved in a #CircularArc, overlooking a park on the lower slopes.
The #RiverAvon flows through the city and here, you can see it and also one of the famous #bridges, called #PulteneyBridge, which has shops over the span.
There’s a nice walk along a stretch of the #river and here you can see the bridge from which the last #photograph was taken. I like the reflection of the river on the underside of the #arch.