Recently, magnetic compasses at Greenwich pointed directly at true north for the first time in 360 years. This is currently happening in Western Australia too. But what does it mean?
Eight decades after missing aviator Amelia Earhart was declared dead, technologies still don't quite track every airplane all over the globe.
China's actions in the South China Sea are getting scant attention at Davos. But if the Chinese set a precedent for other rogue nations, there will be a profound impact on global free trade.