Williamson Brothers built 441 Vortex Turbines, selling one of the last to Sir William Armstrong at Cragside in Northumberland, the first house in the world to be lit by hydroelectricity.

The polar vortex could bring a cold blast to millions across America in the second half of March, AccuWeather said in a media ...

Williamson Brothers built 441 Vortex Turbines, selling one of the last to Sir William Armstrong at Cragside in Northumberland, the first house in the world to be lit by hydroelectricity.

Extremely cold temperatures brought about by an Arctic polar vortex are set to send energy bills spinning this month, as much of the U.S. is expected to feel a chill in the first half of January ...

CARL is an autonomous underwater vehicle designed by researchers Peter Gunnarson and John O. Dabiri, this robot uses vortex ...

It works well, and produces a vortex when the turbine is spun by a regular LEGO motor. A second attempt elects to rotate the entire sphere itself. Small LEGO wheels are then used to hold the ...