High Speed Gear Sized and Configured to Reduce Windage Loss

A gear and drive system utilizing the gear include teeth. Each of the teeth has a first side and a second side opposite the first side that extends from a body of the gear. For each tooth of the gear, a first extended portion is attached to the first side of the tooth to divert flow of fluid adjacent to the body of the gear to reduce windage losses that occur when the gear rotates. The gear may be utilized in drive systems that may have high rotational speeds, such as speeds where the tip velocities are greater than or equal to about 68 m/s. Some embodiments of the gear may also utilize teeth that also have second extended portions attached to the second sides of the teeth to divert flow of fluid adjacent to the body of the gear to reduce windage losses that occur when the gear rotates

A study of the annealing kinetics of cold-worked copper /

"North American Aviation, Inc., Atomic Energy Research Department, Downey, California.""Issue Date: October 9, 1951."Includes bibliographical references (page 19).U.S. Atomic Energy Commission Contract ;Mode of access: Internet

A Passively Suspended Tesla Pump Left Ventricular Assist Device

Detail of hoof and texture of the hair; Both wild boars (a male and female) were created in 1926 and cast in 1929. Carl Milles created them on order from an English lord, Lord Melchett. There are multiple casts, and one set was eventually acquired by the Swedish Royal Court and can now be found at Ulriksdal Palace. Carl Milles sculpted many animals. He was often interested in heavyset, large animals, such as bears, elephants and wild boars. There is a beetle and a lizard between the front legs of the boar. The Cranbrook casts stand guard over the painted iron Nichols Gate, designed by Eliel Saarinen. Source: Millesgården [estate website]; http://www.millesgarden.se/ (accessed 7/22/2015