Headlamp

A headlamp is a lamp attached to the front of a vehicle to light the road ahead. While it is common for the term headlight to be used interchangeably in informal discussion, headlamp is the term for the device itself, while headlight properly refers to the beam of light produced and distributed by the device.

Headlamp performance has steadily improved throughout the automobile age, spurred by the great disparity between daytime and nighttime traffic fatalities: the US National Highway Traffic Safety Administration states that nearly half of all traffic-related fatalities occur in the dark, despite only 25% of traffic travelling during darkness.

Other vehicles, such as trains and aircraft, are required to have headlamps. Bicycle headlamps are often used on bicycles, and are required in some jurisdictions. They can be powered by a battery or a small generator.

History of automotive headlamps

Mechanics

The earliest headlamps were fueled by acetylene or oil, and were introduced in the late 1880s. Acetylene lamps were popular because the flame is resistant to wind and rain. The first electric headlamps were introduced in 1898 on the Columbia Electric Car from the Electric Vehicle Company of Hartford, Connecticut, and were optional. Two factors limited the widespread use of electric headlamps: the short life of filaments in the harsh automotive environment, and the difficulty of producing dynamos small enough, yet powerful enough to produce sufficient current.

High Beam (Transformers)

High Beam is a fictional character from the Transformers series. He is a heroic Autobot (and later Maximal) who turns into a car.

Transformers: Generation 2

High Beam was inproduced in the Generation 2 series of Transformers, as a member of the Gobots sub-line. High Beam is later upgraded to become a Maximal and a member of the Max Cops.

Fun Publications

High Beam's sole appearance in the Transformers franchise is among the Generation 2 Autobots on Earth in the 2010 Botcon story Generation 2: Redux.

Toys

References

High (David Hallyday song)

"High" is a 1988 song recorded by French artist David Hallyday. It was the second of the four singles from his debut studio album True Cool. Released in November 1988, the song was a hit in France, becoming David Hallyday's first number-one single.

Song information

The song was composed by Lisa Catherine Cohen and the music composed by the singer himself. As for the rest of the album, lyrics are in English-language. The music video was shot in a church, Hallyday playing the organ, while a chorus composed of women chanted 'high' during the refrains. With this vigorous song, Hallyday presents "a musical style at the joint of Californian rock and pop".

In France, the single debuted on the singles chart at #45 on November 19, 1988, climbed quickly and entered the top ten in its fourth week. It topped the chart for five consecutive weeks, then almost didn't stop to drop on the chart and totaled 15 weeks in the top ten and 23 weeks in the top 50. Although it was not certified by the SNEP, the French certifier, its sales made the song the 440th best-selling single of all time in France. The song was the most successful from the album True Cool and the second one in Hallyday's career, behind "Tu ne m'as pas laissé le temps".

High (Flotsam and Jetsam album)

High is the sixth album by the thrash metal band Flotsam and Jetsam, released on June 3, 1997. Until 2012's Ugly Noise, it was their last album with guitarist Michael Gilbert and drummer Kelly David Smith.

Track listing

Credits

References

High (The Blue Nile album)

High is the fourth studio album by Scottish band The Blue Nile, released on 30 August 2004 on Sanctuary Records. A single, "I Would Never", was released one week prior to the album: a second song, "She Saw the World", was made available as a promotional single, but never released officially.

"Soul Boy" had already been recorded by former Spice Girl Melanie C for her album Reason the previous year.

Critical reception

The album received generally favourable reviews, with many critics considering High to be a stronger album than their previous effort Peace at Last. AllMusic said "the Blue Nile have returned with a more balanced album [than Peace at Last] and Buchanan is broken-hearted again, thank the stars. He's been struggling with fatigue and illness and as selfish and inconsiderate as it sounds, it's brought the spark back to his writing... given the time to sink in, the album fits well in their canon."The Guardian believed that with High "the emotional commitment of Peace at Last is combined with the observational detachment of the earlier work... In pop, most people do their best work within five or six years. How extraordinary, then, that after more than two decades of activity, the Blue Nile remain on course, their range expanded, their focus more refined, unshaken in their determination to proceed at their own measured pace."

Beam

Beam may refer to:

BEAM

Beam (structure)

A beam is a structural element that is capable of withstanding load primarily by resisting against bending. The bending force induced into the material of the beam as a result of the external loads, own weight, span and external reactions to these loads is called a bending moment. Beams are characterized by their profile (shape of cross-section), their length, and their material.

Beams are traditionally descriptions of building or civil engineering structural elements, but smaller structures such as truck or automobile frames, machine frames, and other mechanical or structural systems contain beam structures that are designed and analyzed in a similar fashion.

Overview

Historically beams were squared timbers but are also metal, stone, or combinations of wood and metal such as a flitch beam. Beams generally carry vertical gravitational forces but can also be used to carry horizontal loads (e.g., loads due to an earthquake or wind or in tension to resist rafter thrust as a tie beam or (usually) compression as a collar beam). The loads carried by a beam are transferred to columns, walls, or girders, which then transfer the force to adjacent structural compression members. In light frame construction joists may rest on beams.