jan 1, 1718 - [1718] John Hadley improves the precision of the reflecting telescope.
Description:
The reflecting telescope reflected light, instead of warping it. This allowed for more accurate conclusions to be made on positions and colors of astronomical objects; and with John Hadley's improvements, the reflecting telescope became the most trusted and only commercially used telescope in the world.Added to timeline:
Date:
jan 1, 1718
Now
~ 308 years ago