# The Nature of Reality

- Institution: Gresham College
- Speaker: Professor Roberto Trotta
- Year: 2019
- Level: For everyone
- Language: English
- Subjects: Physics, Astronomy and space
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/series/nature-reality)
- Licence: [Educational use (Gresham College's terms)](https://www.gresham.ac.uk/terms-and-conditions)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

This lecture will explain the physics of the cosmic microwave background and the challenges in understanding where our universe came from.

## Lectures

1. [Weighing the Universe](https://invisiblenetwork.ai/learn/gresham/series-nature-reality/4b41a9b24ad6) (YouTube)
2. [What Has Einstein Ever Done For You?](https://invisiblenetwork.ai/learn/gresham/series-nature-reality/edd715083b71) (YouTube)
3. [Mysteries of the Dark Cosmos](https://invisiblenetwork.ai/learn/gresham/series-nature-reality/3f7e092c74db) (YouTube)