Tolerance.ca
Director / Editor: Victor Teboul, Ph.D.
Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

Airship Drones Could Stay Aloft for Days

Battery-powered drones have mostly replaced manned aircraft in a range of tasks, from scientific measurements to aerial photography, with one persistent disadvantage – the limit of their power source. A startup company in San Francisco says their airship can do a lot of those tasks while staying in the air much longer. VOA’s George Putic reports.


Read complete article

© Voice of America -
Subscribe to Tolerance.ca


Follow us on ...
Facebook Twitter