* Infralateral arc

* Infralateral arc

* Carbon arc lamps use a mixture of rare earth elements to improve the light quality.

The application in carbon arc light led to the exposure of people to rare earth element oxides and fluorides, sometimes led to pneumoconiosis.

* Parry arc, a rare halo, an optical phenomenon which occasionally appears over a 22 ° halo together with an upper tangent arc

* Subhelic arc, a rare halo that curves upwards from the horizon and touches the tricker arc above the anthelic point

* Supralateral arc, a rare halo, an optical phenomenon often confused with the indeed infrequently appearing 46 ° halo

* Praseodymium is present in the rare earth mixture whose fluoride forms the core of carbon arc lights which are used in the motion picture industry for studio lighting and projector lights.

A tragic and sympathetic antagonist in his initial two-issue arc, having acquired his vampiric addiction while researching a cure for his own rare, fatal blood disease, Morbius collided again with Spider-Man and others in Marvel Team-Up # 3-4 ( July & Sept. 1972 ).

Game designer Greg Costikyan said that " My Life with Master works because Czege has chosen as the theme for his game a story genre ( Gothic horror ) that has a defined narrative arc: hubris and terror, followed by a fall " and that " It evokes emotions and feelings rare in games ".

* Lower tangent arc, rarely observable halo, an optical phenomenon appearing under and tangent to a 22 ° halo centred around the sun

* Upper tangent arc, halo, an atmospheric optical phenomenon which appears over and tangent to the 22 ° halo centred around the sun

Halo display at the South Pole ( 1980 ), featuring a parhelion, 22 ° halo, parhelic circle, upper tangent arc and Parry arc.

The image also shows a 22 ° halo ( circle ), a parhelic circle ( the curved line extending between and beyond the parhelion and the sun ), an upper tangent arc and a Parry arc.

Observed during eclipse, the sun's chromosphere appears ( briefly ) as a thin pinkish arc, and its corona is seen as a tufted halo.

Lacking telescopes to work with, he increased his accuracy by increasing the length of his sextant ; the so-called Fakhri sextant had a radius of about 36 meters ( 118 ft ) and the optical separability of 180 " ( seconds of arc ).

For example a 1 meter diameter optical telescope is two million times bigger than the wavelength of light observed giving it a resolution of roughly 0. 3 arc seconds, whereas a radio telescope " dish " many times that size may, depending on the wavelength observed, only be able to resolve an object the size of the full moon ( 30 minutes of arc ).

A unique feature of the HETE mission was its capability to localize GRBs with ~ 10 arc second accuracy in near real time aboard the spacecraft, and to transmit these positions directly to a network of receivers at existing ground-based observatories enabling rapid, sensitive follow-up studies in the radio, IR, and optical bands.

They provide protection against debris, the heat from welding, and, with the proper filters, the optical radiation resulting from the welding, which can otherwise cause arc eye.

The normal optical depths of the arcs are estimated to lie in the range 0. 03 – 0. 09 ( 0. 034 ± 0. 005 for the leading edge of Liberté arc as measured by stellar occultation ); the radial widths are approximately the same as those of the continuous ring — about 30 km.

The use of a bare arc tube can allow transmission of UV or precise positioning within the optical system of a luminaire.

LIBS makes use of optical emission spectrometry and is to this extent very similar to arc / spark emission spectroscopy.

Examining the spectrum of the arc of manganese, he determined that the optical spectra of complex atoms consisted of groups of lines – which he called " multipletes "- between which existed certain characteristic regularities.

* Circumhorizontal arc, an atmospheric optical phenomenon

At the same time the stars can be observed to move slightly retrograde, at the rate of about 50 arc seconds per year, a phenomenon known as the “ precession of the equinox ".

A fog-bow is defined as " an infrequently observed meteorological phenomenon ; a faint white, circular arc or complete ring of light that has a radius of 39 degrees and is centered on the antisolar point.

However, Maunder wrote that the phenomenon moved rapidly from horizon to horizon, which would rule out a noctilucent cloud or upper tangent arc.

An infrequently observed meteorological phenomenon ; a faint white, circular arc or complete ring of light that has a radius of 39 degrees and is centered on the antisolar point.

A rainbow is a meteorological phenomenon that appears as a multicolored arc that forms with the sunlight

In act two, a girl named Regan ( Linda Blair ) becomes possessed by a demonic entity ( the problem ), and Karras ' character arc is being forced to accept that there is no rational or scientific explanation for the phenomenon except that she actually is possessed by a demon, which ties in directly with the theme of him losing his faith.

At the end of life, high-pressure sodium lamps exhibit a phenomenon known as cycling, which is caused by a loss of sodium in the arc.

This phenomenon can be seen during warmup, when the arc tube has not yet reached full operating temperature and the halides have not fully vaporized.

He first makes a cameo in the episode " The Cat " ( in which he is briefly voiced by David Warner ), before appearing as a central figure in the " Six Forgotten Warriors " story arc, in which he turns his son into this show's version of Electro.

The third series juxtaposes the more personal story arc of the search for Greg with a wider narrative of society appearing to establish itself again with federated communities, market bartering and rudimentary railway travel, based on utilising the steam locomotives preserved on heritage railways.

After the first arc of Young X-Men, the characters began appearing in the pages of Uncanny X-Men.

Other characters appearing in the arc include Daredevil ( as Jessica's attorney Matt Murdock ), Captain America, and second-tier villain Man Mountain Marko.

A further internal inconsistency appearing in The Lost arc is the portrayal of the relationship between Gol Kolea and his son, Dalin Criid.

The shape of the shield was different, and the stars were arranged differently, with all stars appearing above the scroll using an arc of 10 stars with three more directly underneath.

This arc featured the main characters from Detective Academy Q were make a cameo appearance, along with Saburomaru as the minor character, appearing only a few pages.

On a nautical chart the distance is often measured on the latitude scale appearing on the sides of the map: one minute of arc of latitude is approximately one nautical mile or 1852 metres.

However, after Coto learned that Brent Spiner was interested in appearing on the show, Coto created the character of Arik Soong and removed Green from the story arc.

Wentz was in a multi-episode arc of the show One Tree Hill, appearing at Tric ( the local all-ages club in Tree Hill ) with the entire band.