Unlike conventional semiconductors, graphene cannot be switched off, a problem that threatens to scupper its use in future generations of transistors. Now physicists think they’ve found a solution.
Cheap, simple water filters made of plant xylem could dramatically reduce the incidence of water-borne diseases in places without access to clean drinking water, say engineers.
Sudoku fanatics have long claimed that the smallest number of starting clues a puzzle can contain is 17. Now a year-long calculation proves there are no 16-clue puzzles.
Plentiful natural gas could help reduce carbon emissions, but it could also delay zero-carbon technology.
For the next month, I’m trying out a smartphone-less existence. Am I crazy?
Criminals are increasingly using the internet to turn dirty money into a spotless shade of green. Now a report written for the United Nations lifts the lid on many of these increasingly popular techniques.
Knowledge banking for a hyper connected society.
If we want to bring coding skills to the masses, we may have to reinvent what programming is.
A new cosmology successfully explains the accelerating expansion of the universe without dark energy; but only if the universe has no beginning and no end.
Google’s one-gigabit service made a big statement, but what’s still far from clear is who actually uses it, and for what.