Gold on clearance: Archimedes-XXI

"Not all gold that glitters", - says the proverb. And today, after thousands of years after the famous bathing Archimedes, a matter of finding fake gold bars is still relevant. Is suggested to use the same method of ultrasound, which is so familiar to mother and father.
Perhaps even Archimedes and his bathtub would not have found a rather clever trick that fraudsters can use our time - bar in admixture of tungsten metal, which has almost the same density of gold. No wonder the Chinese shop China Tungsten Online offers a gold-plated tungsten parts marked "only for legitimate use."
So far the only reliable way to detect that a hidden layer of gold tungsten, was to use a high hardness of the not so noble and precious metal. Its presence can show a simple drill, but needed another "non-invasive" method. And a recently proposed company General Electric, or rather its new ultrasound device Phasor XS .
In general, ultrasound is widely used in many fields - not only perinatal medicine, but also, say, for inspection when required to detect the smallest inhomogeneity.In contrast to the other, unfit for the purpose of ultrasonic detectors to understand the picture which can only specially trained people, new Phasor XS displays clear, simple images, of which one can immediately conclude how clean the specimen before us. Billionaire note.
Read also about how future mining of precious metal - is so promising that he can no longer be quite so precious " Bonanza Earth "and" Microbes produce capital . "