News

Health & Medicine

Lead in spice mixes caused poisonings

Contaminated spices, purchased from poorly regulated sources, can explain some cases of lead poisoning that involve several members of a family.

Earth

The river’s rising: A depressing effect

When the Amazon River swells in flood each rainy season, the immense weight of the water causes Earth's surface in the region to sink dozens of centimeters.

Physics

Champion of strength is forged in mighty anvil

A new form of carbon created in an anvil and composed of microscopic needles of diamond has emerged as the strongest known material.