There's $2.5 Billion Worth of Silver and Gold in Phones Sold This Year

Your gadgets contain tiny specks of precious and rare earth metals—we rely on these dust-sized particles, which are so small they're often not recycled because the cost of recycling outweighs the value of the metals. But according to the American Chemical Society, the overall value of these minute materials is massive. » 9/03/14 12:28pm 9/03/14 12:28pm

These Are the Rare and Precious Metals Mined From Inside Old Electronics

You've surely heard that inside your iPhone, TV, and power drill sit fragments of valuable metals, and that our hunger for new gadgets is depleting the world of its very limited supply. But you've probably never actually seen those chips of gold or tantalum. Well, here they are. » 6/05/14 1:20pm 6/05/14 1:20pm

This Gold Nanoparticle Paint Changes Color Based on Touch

A team of chemists at the University of California, Riverside, recently had a happy accident. While experimenting with stringing gold nanoparticles together, they noticed that the gold kept changing colors from a bright blue to purple to red. Indeed, the more they touched it, the more the color changed. » 5/02/14 2:40pm 5/02/14 2:40pm

Mushrooms Can Mine the Gold From Your Old Cellphones

Crack open your dumb old phone, and you'll find lots of circuits and no lack of precious metals. "In 100,000 cell phones, it's estimated that there is 2.4 kilograms of gold, more than 900 kilograms of copper, 25 kilograms of silver, and more," according to Motherboard. Could a safer and and cheaper method of… » 4/14/14 7:00pm 4/14/14 7:00pm

The San Francisco Mint Burned Its Carpets to Find $3,200 Worth of Gold

Even after the gold fever died down, gold itself was in the air in San Francisco—as long as you knew where to look. That place would be in the San Francisco Mint. In a majestic granite and sandstone building downtown, bullion was turned into gold coins—as well as lots and lots of gold dust. » 2/27/14 5:40pm 2/27/14 5:40pm

All the gold in the world visualized in 3D

You are looking at the top government gold reserves stacked in 400-ounce Gold bars, according to Demonocracy—a ranking headed by the United States, Germany and the International Monetary Fund. But how much gold has been mined through the entire history of the world? Here's what it looks like, compared to the Statue of… » 2/04/14 7:45pm 2/04/14 7:45pm

9 facts about the Olympics that you probably don't know

The Olympics are coming! The Olympics are coming! And even if it's only the Winter Olympics, it's still fun to see countries who know nothing about each other put on colorful spandex to beat each other up for medals. But did you know that the gold medal is actually made from silver? Or that the bronze medal is only… » 2/03/14 9:19pm 2/03/14 9:19pm

Terrifying Facts About the World's Deepest Gold Mine

Oh, the things humans will do to get their grubby hands on gold—a metal mostly prized for its ornamental use, hoarded in bank vaults and jewelry boxes, though we've arbitrarily decided it's worth, uh, its weight in gold.* The deepest gold mine in the world is Mponeng, a 2.5-mile hole in the ground in South Africa. A… » 12/16/13 3:20pm 12/16/13 3:20pm