gold
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Ancient Microbes May Have Created The World’s Largest Gold Mines
Nearly half the gold ever mined comes from the Witwatersrand Basin, a layer of gold-flecked rock that spreads out under South Africa. The mines there are famously deep and prolific. Why is there so much gold concentrated in this one small part of the Earth’s crust?
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The Curious Case Of The Disappearing Gold Moto 360
First it was there. And now it’s not. On Friday, a Redditor spotted a new addition to the Moto 360 lineup though a link emailed out by Motorola itself. The curious timepiece in question is the gold-rimmed device on the top row center of the photo above.
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Tiny Gold Nanomotors Spin 10 Times Faster Than A Race Car Engine
Nanomotors are an amazing feat of engineering: tiny gold rods less than a micrometer long, powered by ultrasonic waves to spin at crazy-fast speeds. How fast? Scientists just figured out a way to measure, and it’s astonishing: 150,000 RPM, 10 times faster than the fastest race car engine.
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This Gold-Plated Bike Is Real And Costs $US1 Million
Choosing the right bike can be a difficult process, but now there’s an obvious choice for those with more money than sense: this frankly insane gold-plated Salsa Mukluk, which weighs in at a startling $US1 million.