Helios

Helios (/ˈhiːli.ɒs/; Ancient Greek: Ἥλιος Hēlios; Latinized as Helius; Ἠέλιος in Homeric Greek) was the personification of the Sun in Greek mythology. He is the son of the Titan Hyperion and the Titaness Theia (Hesiod) (also known as Euryphaessa (Homeric Hymn 31)) and brother of the goddesses Selene, the moon, and Eos, the dawn.

Helios was described as a handsome titan crowned with the shining aureole of the Sun, who drove the chariot of the sun across the sky each day to earth-circling Oceanus and through the world-ocean returned to the East at night. In the Homeric hymn to Helios, Helios is said to drive a golden chariot drawn by steeds (HH 31.14–15); and Pindar speaks of Helios's "fire-darting steeds" (Olympian Ode 7.71). Still later, the horses were given fiery names: Pyrois, Aeos, Aethon, and Phlegon.

As time passed, Helios was increasingly identified with the god of light, Apollo. However, in spite of their syncretism, they were also often viewed as two distinct gods/titan (Helios was a Titan, whereas Apollo was an Olympian). The equivalent of Helios in Roman mythology was Sol, specifically Sol Invictus.

NASA Pathfinder

The NASA Pathfinder and NASA Pathfinder Plus were the first two aircraft developed as part of an evolutionary series of solar- and fuel-cell-system-powered unmanned aerial vehicles. AeroVironment, Inc. developed the vehicles under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) program. They were built to develop the technologies that would allow long-term, high-altitude aircraft to serve as "atmospheric satellites", to perform atmospheric research tasks as well as serve as communications platforms. They were developed further into the NASA Centurion and NASA Helios aircraft.

Pathfinder

AeroVironment initiated its development of full-scale solar-powered aircraft with the Gossamer Penguin and Solar Challenger vehicles in the late 1970s and early 1980s, following the pioneering work of Robert Boucher, who built the first solar-powered flying models in 1974. Under ERAST, AeroVironment built four generations of long endurance unmanned aerial vehicles (UAVs), the first of which was the Pathfinder.

Helios (lens brand)

Helios (Russian: Ге́лиос) was a brand of camera lenses, made in the USSR. They were usually supplied with Zenit cameras and thus usable with other M42 lens mount cameras such as the Pentax Spotmatic. Some later Helios models were built also for the Pentax K mount.

The Helios-44 and Helios-40 are derivatives of the Carl Zeiss Biotar optical formula. As all lenses based on the Biotar formula, the Helios-44 and Helios-40 produce an unusual "swirly" bokeh effect to the out-of-focus background. The bokeh "circles" become more elliptical in shape as you move away from the center of the photo. This optical phenomenon gives images rendered by these vintage lenses a distinct character, which has created a cult following among fine art photographers.

List of Helios lenses

Footnotes

References

Final

Final or The Final may refer to:

Art and entertainment

See also

Final (competition)

The final of a competition is the match or round in which the winner of the entire event is decided.

In sports competitions following a knockout system, where only two individuals or teams compete in each match, the final is usually played between the winners of two semi-finals. However, if more than two entrants are required for each match, then qualification for the final may be through some other process such as winning heats.

The final is usually, but not always, the last match in a tournament to be played, and the winner of this match is declared the winner of the whole tournament. In many contests, the winner(s) and runner(s)-up receive gold and silver medals respectively. Another game, or competition, between the two players who lost in the semi-finals is done to determine who receives the bronze medal. Unusually, many teams (32 in recent years) qualify for the FIFA World Cup finals. These teams then play each other in various formats until the ultimate two 'finalists' play off for the gold and silver medals.

Final (band)

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Final is a project of Justin Broadrick, creator of the band Godflesh, which he started when he was just 13 years old. Unlike Godflesh, Final is primarily electronic in nature, taking on a space-like, dark ambient sound.

In 2006 Final performed across Europe, including a slot on the Supersonic Festival at the Custard Factory, Birmingham on 23 July, and as special guests supporting Isis on 24 July.

Discography

Studio albums

Singles and EPs