ENGINEERING PROGRESS

NEW MOTOR FOR AERIAL NAVIGATION.

A RECENT development in gasoline engines promises to overcome in a measure two drawbacks to aerial navigation—the weight of the engine and the instability of the machine as a whole. In the new engine the cylinders revolve and act as a comparatively heavy flywheel, whose gyroscopic action tends to keep the machine in equilibrium.

Inflated Owl Decoys Crows

Crow hunters have been supplied with an unusual accessory in the form of an eighteen-inch pneumatic decoy owl, which can be carried rolled up in a coat pocket and inflated when needed. Crows are hereditary enemies of owls, and attack them whenever they find them in daylight. Hence, the decoy placed on an upright stick in an open space attracts the crows and brings them within gunshot. The body of the decoy owl is made of heavy, durable canvas which is painted realistically.

“Petrified Lightning” Is Formed by Catching Man-Made Bolts in Sand
By CATCHING bolts of artificial lightning in a pail of sand, Westinghouse engineers duplicate one of nature’s rarest phenomena.