The Prospect of Prospecting

The Prospect of Prospecting

by Harold Kirkemo, USGS Anyone who pans for gold hopes to be rewarded by a colorful glitter in the fine...

“1.21 Gigawatts!”: The Real Facts About Lightning

“1.21 Gigawatts!”: The Real Facts About Lightning

On July 19, 2003, Rick and Lisa Goff were enjoying an idyllic afternoon of fishing with their three children. They...

Mountain Lions in the Southwest

Mountain Lions in the Southwest

Genetically speaking, mountain lions have more in common with housecats than they do with the proud lions of the Serengeti....

The Dangers of Heat and Cold: Heat Stroke

The Dangers of Heat and Cold: Heat Stroke

As soon as the ambient temperature rises above that of your body, it can no longer lose heat through radiation....

The Dangers of Heat and Cold: Frostbite

The Dangers of Heat and Cold: Frostbite

Exposure to cold temperatures causes blood vessels near the surface of the body to constrict, reducing blood flow and loss...

The Dangers of Heat and Cold: Hypothermia

The Dangers of Heat and Cold: Hypothermia

Introduction Every chemical reaction has an optimal temperature range. Stray outside that given range and undesirable things happen; that’s why...

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