Explainer: What is a virtual private network (VPN)?

Have you ever wanted to exist in more than one place at the same time? The laws of physics suggest wormholes through space and time are hypothetical; but wormholes do exist in cyberspace and wonders can be found on the other ...

Nanoparticles helping to recover more oil

When petroleum companies abandon an oil well, more than half the reservoir's oil is usually left behind as too difficult to recover. Now, however, much of the residual oil can be recovered with the help of nanoparticles and ...

Lee Smolin describes a new model of the universe (w/ Video)

Time is real, the laws of physics can change and our universe could be involved in a cosmic natural selection process in which new universes are born from black holes, renowned physicist and author Lee Smolin said in a talk ...

Physicists discover a new kind of friction in the nanoworld

Whether in vehicle transmissions, hip replacements, or tiny sensors for triggering airbags: The respective components must slide against each other with minimum friction to prevent loss of energy and material wear. Investigating ...

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