What biologists still don't know about bioluminescence

Humans have long been fascinated by organisms that can produce light. Aristotle, who was a scientist as well as a philosopher, wrote the first detailed descriptions of what he called "cold light" more than 2,000 years ago. ...

Power demand peaks in northern India heat wave

Searing heat wave temperatures in northern India pushed power demand to a record high, the government said Tuesday, with residents of the capital New Delhi also struggling with water shortages.

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