A CT, or computerised tomograph, scanner is a special x-ray machine which sends several beams into the body at the same time. These are analysed by computer to give a three-dimensional view of the ...

The Historic Roddy Road Covered Bridge in Thurmont, Maryland, creates exactly that kind of disbelief—the good kind where you keep blinking and looking around to confirm that yes, this authentic slice ...

The Snipping Tool's new visual search engine can analyze and identify the object that you've selected. See how it works.