# Notes from a Large Planet: a citizen’s guide to the Earth

- Institution: Gresham College
- Speaker: Professor Helen Czerski
- Year: 2025
- Level: For everyone
- Language: English
- Subjects: Physics, Biology, Earth and environment
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/series/large-planet)
- 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)

Planet Earth is an intricate and interconnected system, with some fundamental rules that we usually ignore. But we are part of our planet, not separate to it or just perched on top of it. This lecture will consider the two primary rules of Earth: that energy continually flows through the system (in from the Sun and then out again to space) and that matter/atoms must be continually recycled and use these to build up an outsider’s view of our planet.

## Lectures

1. [Earth – Our Planetary Life Support System](https://invisiblenetwork.ai/learn/gresham/series-large-planet/58ccd9ce51de) (Audio)
2. [Ocean: The Liquid Engine That Dominates Our Planet](https://invisiblenetwork.ai/learn/gresham/series-large-planet/7982f5a58cf6) (Audio)
3. [An Ocean of Air](https://invisiblenetwork.ai/learn/gresham/series-large-planet/d8900c74c271) (Audio)
4. [The Ground We Stand On](https://invisiblenetwork.ai/learn/gresham/series-large-planet/168ab708ef19) (Audio)
5. [A Living Planet](https://invisiblenetwork.ai/learn/gresham/series-large-planet/e009f8f48839) (Audio)
6. [The White Knight: Ice](https://invisiblenetwork.ai/learn/gresham/series-large-planet/e19867d2d9fa) (Audio)