Part 1 of 5 · freeIntroduction
A bolt of lightning releases colossal energy in the blink of an eye. The air inside the lightning channel climbs to roughly 30,000°C. Thunder is nothing more than the sound of that brutal heat.
To understand lightning, follow three steps: how the cloud builds up its charge, how the electricity finds a path, and why the thunder reaches you afterward.
The rest is in the Sophia app.The remaining parts, the open-book quiz and the full glossary. Free to start; Premium unlocks everything.
- 2Inside the cloud, charges pull apart
- 3When the air gives way: the discharge
- 4Why the thunder comes later
- 5Danger, fertilizer and oddities
Open-book quiz8 questions whose answers are in the text.
Glossary10 terms explained in a tap.
30 languagesThe same course, from French to Japanese.
