Jerusalem tower younger than thought

Gihon Spring, just downhill from the ancient city of Jerusalem, was crucial to the survival of its inhabitants, and archaeologists had uncovered the remains of a massive stone tower built to guard this vital water supply. ...

What are cell site simulators? And how do they work?

The formidable surveillance power of cell site simulators has put them at the forefront of privacy debates in the U.S. and Europe. Now The Associated Press has found evidence that the devices are sending threatening text ...

The sky is the limit for new low-cost 3-D printer

Sliperiet at Umeå Arts Campus is in the process of making a 3-D printed Tower of Babel using a novel hanging printer. This offers a low-cost solution and increased flexibility to print large volumes.

Image: Third Bosphorus Bridge progress

These 17 images from the Sentinel-2A satellite show a year of progress on the Third Bosphorus Bridge in Istanbul, Turkey.

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