Unusual Machines (UMAC) signed a definitive agreement,effective June 12, to acquire Rotor Lab, an Australian developer and manufacturer of electric motors and propulsion systems for unmanned aerial ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Edward Hebern of California designed ...

Unusual Machines, Inc. (AMEX:UMAC) on Friday inked a definitive agreement to acquire Rotor Lab Pty Ltd, an Australia-based manufacturer of electric propulsion systems for unmanned aerial systems. The ...

Edward Hebern of California designed this rotor for a cipher machine. Commercial rotary cipher machines would be introduced in the 1920s and 1930s for commercial purposes by several people in several ...

An ac induction rotor starts as a stack of steel plates stamped with slots. Either molten aluminum is injected into the slots and flowed over the ends, or (in very large motors) bars of aluminum or ...

A recent ‘AHS International’-managed powered-lift (vtol) conference in Philadelphia was the scene for discussions about a multitude of new and evolved ideas on future vertical lift aircraft. One ...

Although jet engines are theoretically quite simple devices, in reality they tread a fine line between working as intended ...

Gearing up to make even more complex molecular machines, chemists at the University of Groningen have created a molecular motor coupled to a rotor. The motor turns the attached rotor such that the two ...