The app directs help where it is needed most: in Berlin, residents log tree watering and find public pumps.
Cities
The new overpass, about 61 meters wide, is part of a system that also includes five underpasses and fencing.
South Korea now recycles nearly all of its food waste: it is turned into biogas, electricity and fertilizer.
Passenger trains have begun running across Lake Washington in Seattle on the world’s only railway on a floating bridge.
A train on the new Krasnoselsko–Kalininskaya line is being tested to handle the main tasks of movement and stopping on its own.
5G has officially gone live in 16 Russian cities, giving nearly 10 million people access to the new generation of mobile network.
Skovsporet in Holstebro comprises six buildings with 36 student apartments, all 3D-printed.
Researchers found that ancient Roman concrete could seal small cracks on its own.
After ULEZ was introduced, London schoolchildren saw improvements in lung size and function.
In the Japanese Woven City district at the foot of Mount Fuji, Toyota engineers, test users and their families live alongside robots and new technologies.
Zoox has been cleared for commercial rides in fully driverless electric taxis with no steering wheel or pedals.
At Pechatniki station on the Bolshaya Koltsevaya Line, a system is being tested that can detect objects on the tracks in one second and relay the alert to train control and the dispatch center.