Ohm

The ohm (symbol: Ω) is the SI derived unit of electrical resistance, named after German physicist Georg Simon Ohm. Although several empirically derived standard units for expressing electrical resistance were developed in connection with early telegraphy practice, the British Association for the Advancement of Science proposed a unit derived from existing units of mass, length and time and of a convenient size for practical work as early as 1861. The definition of the ohm was revised several times. Today the definition of the ohm is expressed from the quantum Hall effect.

Definition

The ohm is defined as an electrical resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points, produces in the conductor a current of 1 ampere, the conductor not being the seat of any electromotive force.

in which the following units appear: volt (V), ampere (A), siemens (S), watt (W), second (s), farad (F), joule (J), kilogram (kg), metre (m), and coulomb (C).

OHM (band)

OHM (sometimes stylized Ohm: or OHM:) is an American instrumental rock/jazz fusion group fronted by former Megadeth guitarist Chris Poland. The band was formed in 2002 and has released three studio albums and a live album. A similar offshoot band named OHMphrey, also fronted by Poland, was formed in 2008.

The band often perform at the Baked Potato jazz club in Studio City, California.

Discography

Studio albums

Live albums

References

External links

Ohm (disambiguation)

Ohm (Ω) refers to the SI unit of electrical resistance named after Georg Ohm.

Ohm may also refer to:

OHM may refer to:

Iguana

Iguana (/ɪˈɡwɑːnə/,Spanish: [iˈɣwana]) is a genus of herbivorous lizards native to tropical areas of Mexico, Central America, South America, and the Caribbean. The genus was first described in 1768 by Austrian naturalist Josephus Nicolaus Laurenti in his book Specimen Medicum, Exhibens Synopsin Reptilium Emendatam cum Experimentis circa Venena. Two species are included in the genus Iguana: the green iguana, which is widespread throughout its range and a popular pet, and the Lesser Antillean iguana, which is native to the Lesser Antilles and endangered due to habitat destruction.

The word "iguana" is derived from the original Taino name for the species, iwana.

In addition to the two species in the genus Iguana, several other related genera in the same family have common names of the species including the word "iguana".

Anatomy and physiology

Iguanas can range from 5 to 6 feet (1.5 to 1.8 m) including their tail. The two species of lizard within the genus Iguana possess a dewlap, a row of spines running down their backs to their tails, and a tiny "third eye" on their heads. This light-sensing organ is known as the parietal eye, visible as a pale scale on the top of the head, and cannot make out details, just brightness. Behind their necks are small scales which resemble spokes, known as tuberculate scales. These scales may be a variety of colors and are not always visible from close distances. They have a large round scale on their cheeks known as a subtympanic shield.

Iguana (disambiguation)

Iguana may refer to:

See also

RG-34

The RG-34 (formerly denoted as Iguana FV4) is a South African MRAP. Specially designed to be mine-resistant, it has been produced in multiple variants, equipped for troop or cargo transport, command, and fire support.

Development

Development of the Iguana was initiated under contract by Industrial & Automotive South Africa (IADSA) for a Belgian firm, Sabiex; the first prototype being completed in early 2002. By June 2009, BAE Land Systems had obtained necessary rights to develop and manufacture the vehicle. The RG-34 was initially displayed with a potent weapons system for an MRAP, in the form of an overlarge turret fitted with a 90mm (3.5 in.) gun. This has since been replaced by a more ergonomic tactical remote turret (TRT) boasting a 25mm M242 autocannon and a co-axial 7.62mm machine gun.

Design

RG-34's cross-country performance is attributed to its unique suspension, a multi-link hydro-pneumatic structure mounted on a very rigid chassis. This affords optimal performance on road surfaces, a superior turning radius, and clearance over rugged terrain. When deployed in the reconnaissance role long-range fuel tanks give the vehicle an extended operating range of 1,000 kilometres.