Electrodialysis has the potential to desalinate seawater quickly and cheaply but does not remove other contaminants such as dirt and bacteria. Now chemical engineers have worked out how to do that too.
The friendship paradox is the empirical observation that your friends have more friends than you do. Now network scientists say your friends are probably wealthier and happier, too.
At CES, Ford shows a concept for increasing the amount of solar power a car can generate.
Porsche’s new part-time electric car could challenge Tesla, which has been outselling the more established automaker.
The rate at which people post flu-related tweets could become a powerful tool in the battle to spot epidemics earlier, say computer scientists.
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.
Better Place got it wrong: First make a car that people want, then build infrastructure to let them drive it cross-country.
Spacecraft could determine their position anywhere in the solar system to within five kilometres using signals from x-ray pulsars, say astronomers.
Painful finger-prick blood tests for diabetics could become a thing of the past, say physicists who have built a sensor that measures glucose in saliva
There are now many general-purpose consumer LED bulbs that give off good light. With so many, how can you tell the difference?