If we want to communicate with other civilisations, it turns out that the laws of physics, the nature of interstellar space and a little common sense place surprisingly strict bounds on how this communication can take place.
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 technology underpinning Bitcoin has flaws that threaten to undermine the currency’s value.
Physicists have long known that entangled photons can make more precise measurements than independent ones. Now Japanese physicists have built a microscope that proves it.
The best of the rest from the arXiv preprint server.
Large cities are more productive than small ones so it shouldn’t come as a surprise that they produce more CO2 as well, say physicists.
Another chance to catch the most interesting, and important, articles from the previous week on MIT Technology Review.
Electric vehicles can be so quiet that they pose a new risk on the road. But what kind of artificial sound should be added?
If cryptocurrency is to succeed, its proponents need to acknowledge that it’s hard to divorce money from politics.
A roundup of the most interesting stories from other sites, collected by the staff at MIT Technology Review.