Search Results for: 2G spectrum

Secrets of 6,000-year-old amulet illuminated by science

Secrets of 6,000-year-old amulet illuminated by science

Clues about how a 6,000 year-old amulet discovered in Mehrgarh, Pakistan, was manufactured are uncovered by an imaging method reported in Nature Communications. The method, known as photoluminescence imaging, shines light to allow microstructures that are invisible under other conventional microscopes to be seen. It confirms the amulet contains two types of copper oxide and was cast as a single piece by pouring very pure molten copper into a clay mould.This study demonstrates the value of the imaging technique for archaeological artifacts, but it may also be a useful analytical tool in geophysics, engineering and environmental sciences. Nov 15, 2016
Watch a fiery sky lit up by radiowaves from 300,000 galaxies

Watch a fiery sky lit up by radiowaves from 300,000 galaxies

If humans could see radiowaves then this is what the night sky would look like. For the first time scientists have imaged 300,000 galaxies using a telescope deep in the Australian outback, colouring the images to make the radiowaves visible to humans. Oct 27, 2016
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