Photo: Cell Phone Networks Double as Rain Gauges



On rain-slicked streets in Siena, Italy, a woman chats on her mobile phone. The signal strength of cellular telephone networks may be better gauges of rainfall than the radar used by meteorologists, a new study says.

Photograph by William Albert Allard/NGS


NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.