Amazon threatens 'drastic' action after Saks bankruptcy, says $475M stake is now worthless He filmed ICE arrests on the ...

Watching a bird soar into the sky may seem ordinary. Yet behind this aerial ballet lies precise mechanics where every wingbeat obeys the laws of aerodynamics. Birds don't fly by chance: they ...

A live recording of the experimental apparatus in operation. Five foils are driven to flap up and down in unison, and they freely and interactively propel around a water tank. In looking up at the sky ...