Isaac Newton's reflecting telescope Size:XS: 20 x 15cm Study of an energetic eruption

Study of an energetic eruption with plumes of gas and ash

Fashionably dressed men riding hobby horses at a riding school at 337 Strand

View of Garlick Hill looking towards Upper Thames Street

The drawing represents the state of the wreck between the operations of H

smelling strong of Musk

Isaac Newton's reflecting telescope Size:XS: 20 x 15cm Study of an energetic eruptionIsaac Newton's reflecting telescope. The telescope consists of two tubes, one sliding inside the other to focus the mirrors. The tubes are made from layers of paper or cardboard and the upper tube is covered with a layer of decorative vellum. There are two eyepiece holes, one of which is blocked with cork. The inside of the tubes have been painted black and the secondary mirror is positioned inside. 1671