The sinister rise of ‘deepfake’ videos
Are “deepfakes” a threat to democracy? In an online video, Facebook founder Mark Zuckerberg lays out his plan for world domination. However, it is not really him. The video is a fake.
Trees can help predict famines and wars
Scientists are finding that tree ring patterns are a time-map of rainfall and drought, accurately going back thousands of years. These might help us predict future famine and conflict.
The Syrian boy who helps pupils with English
Should we all learn new languages? Eleven-year-old Mohammed is very good at it. A video about how he helps his classmates to understand English is very popular online.