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May Gallery

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 18 pictures in our May collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

1987 Indianapolis 500 Featured May Print

1987 Indianapolis 500

INDIANAPOLIS MOTOR SPEEDWAY, UNITED STATES OF AMERICA - MAY 24: Kevin Cogan, Patrick Racing, March 87C Chevrolet, in the pits during the Indianapolis 500 at Indianapolis Motor Speedway on May 24, 1987 in Indianapolis Motor Speedway, United States of America. (Photo by LAT Images)

© Motorsport Images

Helmet, Portrait

Isaac Newtons design for a reflecting telescope Featured May Print

Isaac Newtons design for a reflecting telescope

Diagram of Sir Isaac Newton's design for a reflecting telescope. Known also as the Newtonian telescope. It worked by concentrating light by reflection from a parabolic mirror, instead of by refraction through a lens. Newton (1642-1727) first displayed this telescope to King Charles II, based on a design of 1668. It had a focal length of 15 cm and could magnify 30-40 times. Inadequate mirrors meant that the Newtonian reflector was not as refined as contemporary refracting telescopes, until 1722, when James Hadley ground a quality parabolic mirror. This drawing was published in the Philosophical Transactions of the Royal Society in 1672