Improving efficiency, effectiveness of security X-ray technology

The smuggling of contraband, such as explosives and drugs, is a major threat in airport security. These risks have increased in modern times with the uptick in parcel delivery, but security inspection methods have not seen ...

The homeland of modern humans

A study has concluded that the earliest ancestors of anatomically modern humans (Homo sapiens sapiens) emerged in a southern African 'homeland' and thrived there for 70 thousand years.

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