Lundi 26 octobre : Watch drones build a bridge you can actually walk over

Cat11-2*

Watch drones build a bridge you can actually walk over

http://mashable.com/2015/09/22/drones-build-bridge/?utm_medium=feed&utm_source=feedburner&utm_campaign=Feed%3A+Mashablefrance+%28Mashable%21+Francais%29#l9L1zCq7w5kN