TRIPOD MOUNTED LEATHER CLAD BRASS TELESCOPE
This brass telescope, encased in leather, clamps onto a wooden stand that extends to a height of 28 cm. It's easily detached by simply unscrewing a nut. It extends to a length of 45 cm & a brass disc protects the glass. Wooden tripod mounted leather clad brass telescope.
Contrary to popular opinion, Galileo did not invent the telescope. In 1609 the great Italian scientist turned his telescope toward the stars and saw the craters of the moon, sunspots, the four large moons of Jupiter, and the rings of Saturn. He saw the rings as "horns" since his telescope could not resolve the gap between the rings. His telescope provided limited magnification--only 30 power--and a narrow field of view; Galileo could see no more than a quarter of the moon's face at a time without moving his telescope. He was the first to publish his findings and risk the censure of the church and his colleagues. Following is a chronological history of the invention and development of the telescope to the 17th century (it gets more complicated after that!)
- c. 3500 B.C. Phonenicians cooking on sand discover glass.
- 424 B.C. Aristophanes uses a glass sphere filled with water to start fires. Lenses would not be used to study the stars for 2000 years.
- 14th century--convex lenses to correct farsightedness are developed.
- 15th century--concave lenses to correct nearsightedness are developed.
- 1608--In the Netherlands, Hans Lippershey discovers that holding two lenses up some distance apart bring objects closer. He applies for a patent on his invention. This is the first documented creation of a telescope. The idea is independently developed by Jacub Metius and Sacharias Janssen. The patent to Lippershey is denied.