Tukuk-OS🌋 Earth & Hazards
Five micro-lessons · about 37 minutes in total
The restless planet: plates, volcanoes, tsunamis, deep time and fresh water. Five lessons, about 37 minutes in total — read one at a time; each stands alone.
The five lessons
1. The Ground Is a Puzzle
Continents float on slow convection, and their seams are where the ground breaks.
2. Volcanoes: Three Places, Two Personalities
Why some volcanoes glow politely and others end civilisations.
3. Tsunamis: The Fastest Thinkable Danger
Not a wave — a moving wall of the whole ocean, and 30 minutes can save everything.
4. Deep Time and the Rock Cycle
Earth is 4.54 billion years old — and humans appear in the last seconds.
5. Freshwater: The Thin Skin of Water
Most of the planet is stone-hard salt; the drinkable slice is thinner than it looks.
Try it live
Further reading
Three real books on this track, from the Open Library catalogue — follow the links for libraries, previews and borrow options.
The research
The most-cited Crossref-indexed papers matching the topic — a window into how professionals actually study it.
- Google Earth Engine: Planetary-scale geospatial analysis for everyone — Gorelick (2017), cited 13,527 times
- The composition of the Earth — McDonough (1995), cited 12,767 times
- Updated world map of the Köppen-Geiger climate classification — Peel (2007), cited 9,874 times