Science & technology | Technology monitor
Beating cheating
Computer analysis of test-takers' answers to standarised tests is revealing cheats
By The Economist online
Mitochondria transplants could cure diseases and lengthen lives
A technique that may create a new field of medicine
Is red meat unhealthy?
Overdoing it could give you heart disease or cancer
Can Musk put people on Mars?
Whether successful or not, his attempt to do so will reshape America’s space programme
Climate change may make it harder to spot submarines
The sound of their engines will not travel as far
How harmful are electronic cigarettes?
The risks of vaping may be worth the benefits
Why don’t seals drown?
They can time their dives to match their blood oxygen