People can figure out what it'd cost to live at different points of their commute. Your city needs something like this.
From 2007 to today.
A stark pattern repeated around the world.
Wearable technology continues to get weirder with these GPS-guided "vibrotactile" sneakers.
In Germany, at least.
In communities that rely on a handful of special events each year, the sharing economy is complicated.
The country is emerging as an innovator in green tech.
The massive response to the deadly accident is so bright that it shines like a little city.
They taste the same if you close your eyes.
This is an easy, passive way to find out.
Until recently, the country's internet came exclusively through dial-up modems and satellite. Not anymore.
This is a thin glowing layer of Earth's atmosphere rippling in the wake of a huge thunderstorm.
A California start-up is letting anyone invest in loans to let homeowners go solar.
Released just ahead of the annual Great Wall Marathon, a new toilet-locating mobile phone app hopes to prevent the urine-soaked walls that blemished last year's event.
Britain's parliament is launching an official enquiry into recent heavy smog.
Scientists have already developed technologies that are more effective in cloudy weather. Now they just have to prove it.
In the Netherlands, it's 500 meters of TRON.
What happens when it all melts? Read on.