Feature

[Photograph]: They Still Whistle

Dead Seas Hoard Minute Amounts of “Heavy” Water

Idle Boilers Protected from Rust with Ammonia

Look Overhead

Tastiest Liquids Come out of Green Bottles

In Science Fields

New Research Promises to Solve Maya Writing System

American Chemists Struggle to Overcome Potash Monopoly

New Glass Bends Far before Breaking

Use of Ultraviolet Light Spreading Rapidly in Industry

Meteors Shower Earth at Increased Rates

Fern Prints Left in Lava That Killed Them