Conventional batteries take so long to charge that they cannot efficiently store braking energy. Graphene supercapacitors store almost as much but charge in just 16 seconds.
Big Data is revolutionizing 21st-century business without anybody knowing what it actually means. Now computer scientists have come up with a definition they hope everyone can agree on.
A new website ranks the world’s scientific institutions by discipline and shows their location on a global map
Intelligent dust particles embedded in the brain could form an entirely new form of brain-machine interface, say engineers
There are now many general-purpose consumer LED bulbs that give off good light. With so many, how can you tell the difference?
Einstein railed against the possibility of spooky action at a distance because it violates relativity. Now Chinese physicists have clocked it travelling more than four orders of magnitude faster than light
If the cosmos is a numerical simulation, there ought to be clues in the spectrum of high energy cosmic rays, say theorists
Some thoughts on a war with many fronts.
Voice recognition could permeate your entire smartphone.
Medicine has been revolutionised by 3D imaging techniques. But you ain’t seen nothing yet, say data imaging researchers