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Diffusion of innovations print that page

DoI_Stages

In 1962 Everett Rogers , a professor of rural sociology published Diffusion of Innovations . In the book, Rogers synthesized research from over 508 diffusion studies and produced a theory for the adoption of innovations among individuals and organizations. The book proposed 4 main elements

Disc brake print that page

Disk_brake_dsc03682

The disc brake or disk brake is a device for slowing or stopping the rotation of a wheel while it is in motion. A brake disc (or rotor in American English) is usually made of cast iron , but may in some cases be made of composites such as reinforced carbon–carbon or ceramic matrix composites

Cooling tower print that page

Didcot_power_station_cooling_tower_zootalures

A hyperboloid cooling tower was patented by Frederik van Iterson and Gerard Kuypers in 1918. [ 1 ] The first hyperboloid cooling towers were built in the last 1920s in Liverpool, England to cool water used at a electrical power station that used coal. [ 2 ] Contents 1 Classification

Automobile handling print that page

Car_diagram

The center of mass height, relative to the track, determines load transfer , (related to, but not exactly weight transfer ), from side to side and causes body lean. When tires of a vehicle provide a centripetal force to pull it around a turn, the momentum of the vehicle actuates load transfer

Tackle (football move) print that page

Afl_tackle

ground towards goal or to stop them from carrying out what they intend. The word is used in some contact variations of football to describe the act of physically holding or wrestling a player to the ground. In others, it simply describes one or more methods of contesting for possession of

United Nations Interim Administration Mission in Kosovo print that page

Unmik_logo

The United Nations Interim Administration Mission in Kosovo or UNMIK is the interim civilian administration in Kosovo , under the authority of the United Nations . The mission was established on 10 June 1999 by Security Council Resolution 1244 . [ 1 ] While UNMIK still exists, it does so

Hot swapping print that page

SPARCstation20_scsi_cradle_with_drive

may be used on either the removable components or the overall system chassis, to prevent operator contact with live powered circuitry, to provide antistatic protection for components being added or removed, or to prevent the removable components from accidentally touching and shorting out

Drum brake print that page

Drum_brake

A drum brake is a brake in which the friction is caused by a set of shoes or pads that press against a rotating drum-shaped part called a brake drum. The term "drum brake" usually means a brake in which shoes press on the inner surface of the drum. When shoes press on the outside of

Corrective lens print that page

Bifoklabrille_fcm

presbyopia . Glasses or "spectacles" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes . Myopia

Electrosurgery print that page

Electrosurgery

In electrosurgical procedures, the tissue is heated by an electric current . Although electrical devices may be used for the cauterization of tissue in some applications, electrosurgery is usually used to refer to a quite different method than electrocautery . The latter uses heat conduction