91av

Spray it again

Rain comes from evaporated water, much of which comes from the sea. So why isn’t rain salty?

Peter Simmons, London, UK

Topics: Last Word

More from 91av

Explore the latest news, articles and features

Popular articles

Trending 91av articles

Four children with terminal brain cancer saved by new cell therapy

Game that reduces dementia risk may clear amyloid from men’s brains

Alzheimer’s, stroke, depression: The preventative power of sauna

Can everyone live a ‘good life’ without destroying the planet?

The US-China AI arms race has taken an unexpected turn

Maya mathematician’s name decoded alongside astronomical formula

How humans evolved to be twice as big as our ancestors

Sugar molecules found in interstellar space for the first time

This book is essential reading before watching the new Odyssey film

Salt batteries are about to shake up EVs and grid storage