I came across a model in the Royal Observatory at the weekend. It is a proposed design for a solar pyramid to be built next to the M1 in Derbyshire.
Solar pyramid
![Solar pyramid](/content/images/size/w800/2022/08/img_1098-1.jpg)
I came across a model in the Royal Observatory at the weekend. It is a proposed design for a solar pyramid to be built next to the M1 in Derbyshire.