Tad

Tad may refer to:

Places

People

TAD

Other uses

See also

Tadó

Tadó (Spanish pronunciation: [taˈðo]) is a municipality and town in the Chocó Department, Colombia.

Coordinates: 5°16′N 76°34′W / 5.267°N 76.567°W / 5.267; -76.567

Tad (band)

Tad (often styled as TAD) was an American grunge band from Seattle, Washington, formed in 1988. Among the first of the many bands which came out of Seattle in the grunge era, Tad was notable for the fact that its music was inspired far more by '70s metal (much like Alice in Chains and Soundgarden, other Seattle-based grunge bands) than the punk which influenced many other grunge bands. Although their commercial success was limited, their music is still highly regarded amongst grunge fans.

History

Formation and Sub Pop years (1988–1991)

Led by Tad Doyle (b. Thomas Doyle) on vocals and guitar, Tad was formed in early 1988 by Doyle who asked bassist Kurt Danielson to play bass for the band. Danielson's band Bundle of Hiss played with Doyle's previous band (in which he played drums) H-Hour. Tad recruited drummer Steve Wied (formerly of Skin Yard and Death and Taxes) and guitarist Gary Thorstensen (ex-Treeclimbers) to complete the original lineup.

Rotor

Rotor may refer to:

Science and technology

Engineering

Computing

Pistonless rotary engine

A pistonless rotary engine is an internal combustion engine that does not use pistons in the way a reciprocating engine does, but instead uses one or more rotors, sometimes called rotary pistons. An example of a pistonless rotary engine is the Wankel engine.

The term rotary combustion engine has been suggested as an alternative name for these engines to distinguish them from early (generally up to the early 1920s) aircraft engines and motorcycle engines also known as rotary engines. However, both continue to be called rotary engines and only the context determines which type is meant.

Pistonless rotary engines

The basic concept of a (pistonless) rotary engine avoids the reciprocating motion of the piston with its inherent vibration and rotational-speed-related mechanical stress. As of 2006 the Wankel engine is the only successful pistonless rotary engine, but many similar concepts have been proposed and are under various stages of development. Examples of rotary engines include:

Disc brake

A disc brake is a type of brake that uses calipers to squeeze pairs of pads against a disc in order to create friction that retards the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary. The energy of motion is converted into waste heat which must be dispersed. Hydraulic disc brakes are the most commonly used form of brake for motor vehicles but the principles of a disc brake are applicable to almost any rotating shaft.

Compared to drum brakes, disc brakes offer better stopping performance because the disc is more readily cooled. As a consequence discs are less prone to the brake fade caused when brake components overheat. Disc brakes also recover more quickly from immersion (wet brakes are less effective than dry ones).

Most drum brake designs have at least one leading shoe, which gives a servo-effect. By contrast, a disc brake has no self-servo effect and its braking force is always proportional to the pressure placed on the brake pad by the braking system via any brake servo, braking pedal, or lever. This tends to give the driver better "feel" and helps to avoid impending lockup. Drums are also prone to "bell mouthing" and trap worn lining material within the assembly, both causes of various braking problems.