The most common types of 3D printing involve either extruding melted plastic or using a laser to solidify tiny particles, layer by layer, to slowly build up a solid object. But researchers at the Department of Energyās Lawrence Berkeley National Laboratory have found a way to radically change that process by 3Dā¦
Henning Brandās name might not immediately ring a bell, but we wouldnāt have a number of lifeās simplest joys were it not for the 17th century alchemistās lifelong quest to transmute urine into solid gold.
Itās been a bad couple of weeks for priceless artifacts from NASA history. First, a moon-dusted sample bag from Apollo 11 was privately auctioned, and now a solid gold moon lander replica that was gifted to Neil Armstrong in 1969 has been stolen from his museum. On Sunday, a NASA investigator worried that the thievesā¦
Letās be perfectly clear on this. Gold-plating anything, be it a phone, or a toilet, or a smartwatch, is a terrible and tacky idea. But gold-plating a drone is even worse, and it has nothing to do with aesthetics.
Metallurgist Grigory Raykhtsaum shows Smithsonian three different ways to test if something is solid gold: a color test, a thermal conductivity test, and a particle test. Itās all computerized now so all he has to do is scan the object to get a read on the color, zap it with an electrical current to measure theā¦
Gold is so malleable that a single gram of it can be stretched into a strip nearly two miles long. A tiny little coin can be pressed into a 0.0001-millimeter-thin golden rectangular sheet the size of a tatami mat. So leave it to the talented artisans of Japan to transform a tiny bit of gold into shimmering gold leafā¦
Over the last year, Apple processed 90 million pounds of electronics that were unwanted or broken. It turns out they were nearly worth their weight in goldāa substance which is used heavily in electronics for its conductivity and resistance to corrosion.
This is the least dense gold nugget in the entire world. It can be held up with a feather. And itās supported by a space-age material often dubbed āfrozen smoke.ā
Where does gold come from? The answer: space, basically. Supernovae, specifically. Alchemy, sort of. So gold doesnāt actually originate from the core of Earth but actually from a star explosion that showers the universe with debris and well, gold. That means thereās not that much of it actually on Earth (all the goldā¦
Android Wear watches are cool and all, but none of them are especially fancy. (Even the new Moto 360, with its flat tire screen.) Until now, at least. An alligator leather wristband, 23-karat gold plating, and a $1000-plus price tag mean the LG Watch Urbane Luxe is a particularly niche geek accessory.
Believe it or not, when you suspend gold in water, it can turn a lilac-blue color. You just need the right amount of salt. And plasmons. See samples of this blue-gold liquid, and learn how a famously warm material can turn cool.
Weāll believe it when we see it, but two men, one a Pole and one a German, say they know the location of a heavily armored Nazi train that was rumored to be hidden away in a tunnel during the dying days of the Second World Warāa train that could contain upwards of 300 tons of gold.
Starting today, you can buy a gold iPod Touch. Itās actually not as lame as it sounds. Beneath its golden shell, the iPod is starting to look a little bit like the low-cost phones that so many of its competitors are working on, too.
Finding gold in Boeslunde, Denmark, is no huge surpriseāitās known as an area where Bronze Age gold offering are often uncovered, as curators there are explaining this month. But a recent discovery has surprised and baffled archaeologists: 2,000 tiny gold spirals. Itās a āgolden enigma.ā
If you want to find out whatās unusual about chloroauric acid, look at the āAuā in the middle. It indicates that this is an acid made using gold. Weāll tell you why people make this acid, and how it can hurt you.
Back in 1904, placer miners combed the Shoshone River for any trace of precious metals. With gold and silver found nearby, long days and hard work sorting through stream deposits had the chance of paying off big.
One of the reasons I desperately want to time travel is to blow the minds of people in the past with just the simplest of things today. Imagine going back hundreds of years and baking this gold 24 'carrot' cake. With a few drops of food coloring and a few edible gold leaf sheets, I'd be hailed as the greatestā¦
The picture above is terrible. It shows the catastrophic effects of the deforestation caused by the current gold rush in the tropical forests of South America. The consumption of gold worldwide is increasing in the last years due to the global economic crisis and the instability in the financial markets.
As far as Apple announcements go, today's "Spring Forward" event was decidedly lacking in big reveals. The only real curveball was Apple's reveal of a brand new MacBookāone that comes in both gold and space gray, no less. Still, there were some fun little surprises thrown in the mix.
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