Human evolution can seem like a phenomenon of the distant past which applies only to our ancestors living millions of years ago. But human evolution is ongoing. To evolve simply means that mutations – the accidental changes to genes that happen normally in the process of copying DNA – are becoming more or less common in the population over time.
When malicious software takes over computers around the world, encrypts their data and demands a ransom to decode the information, regular activities of governments, companies and hospitals slam to a halt. Sometimes security researchers release a fix that allows computer owners to decrypt their machines without paying, but many people are forced to pony up to free their data.
Twitter is an unreliable witness to the world’s emotions, argues a new paper that highlights the risks of assuming that Twitter accurately reflects real life.
A series of experiments have shown objects sinking in water with close to zero drag for the first time, finally proving an 18th century physics theory.
For natural disasters that knock out power—and therefore the internet—researchers have devised a new way of gathering and sharing information that doesn’t rely on electricity.