# 400 Years of the Telescope

- Institution: Gresham College
- Speaker: Professor Ian Morison
- Year: 2009
- Level: For everyone
- Language: English
- Subjects: Astronomy and space, History
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/400-years-telescope)
- Licence: [Educational use (Gresham College's terms)](https://www.gresham.ac.uk/terms-and-conditions)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

This lecture coincides with the 400th anniversary of the first use of a telescope to observe the heavens by Galileo Galilei in 1609. It will chart the development of optical telescopes since then, the subtle ideas that are greatly improving their performance and how they are bringing ever further parts of the universe within our reach.

## Lectures

1. [400 Years of the Telescope](https://invisiblenetwork.ai/learn/gresham/400-years-telescope/68c1147b8211) (YouTube)