Main content
How a salty calculation helped predict hydrothermal vents
Oceanographer Chris German explains to presenter Chhavi Sachdev something that had stumped scientists – why the seas didn’t keep getting saltier and saltier. Working backwards from a small discovery with seawater and Epsom salts (magnesium sulphate) led to a major discovery in the 1970s.
(Photo: A grey smoker of the Panarea volcanic island in the Mediterranean Sea. Credit: Alexis Rosenfeld/Getty Images)
Duration:
This clip is from
More clips from CrowdScience
-
What was the Moon like at its birth?
Duration: 01:52
-
Do girls or boys mature faster?
Duration: 01:12
-
How does an animal cross the road?
Duration: 01:54
-
What happens when a robot has inner speech?
Duration: 03:31