Uriel Frisch

Uriel Frisch (born in Agen, in France, on December 10, 1940) is a French mathematical physicist known for his work on fluid dynamics and turbulence.

Biography

From 1959 to 1963 Frisch was a student at the École Normale Supérieure. Early in his graduate studies, he became interested in turbulence, under the mentorship of Robert Kraichnan, a former assistant to Albert Einstein. Frisch earned a Ph.D. in 1967 from the University of Paris, and since then he has worked at the French National Centre for Scientific Research (CNRS). He retired in 2006, and became a director of research emeritus at CNRS.

Frisch's wife Hélène is also a physicist, and the grand-daughter of mathematician Paul Lévy.

Research

Frisch is the author of a 1995 book on turbulence and of over 200 research publications.

One of his most cited works, published in 1986, concerns the lattice gas automaton method of simulating fluid dynamics using a cellular automaton. The method used until that time, the HPP model, simulated particles moving in axis-parallel directions in a square lattice, but this model was unsatisfactory because it obeyed unwanted and unphysical conservation laws (the conservation of momentum within each axis-parallel line). Frisch and his co-authors Hasslacher and Pomeau introduced a model using instead the hexagonal lattice which became known as the FHP model after the initials of its inventors and which much more accurately simulated the behavior of actual fluids.

Uriel

Uriel (אוּרִיאֵל "El/God is my light", Auriel/Oriel (God is my light) Standard Hebrew Uriʾel, Tiberian Hebrew ʾÛrîʾēl) is one of the archangels of post-Exilic Rabbinic tradition, and also of certain Christian traditions.

In apocryphal, kabbalistic and occult works, Uriel has been equated or confused with Urial,Nuriel, Uryan, Jeremiel, Vretil, Sariel, Suriel, Puruel, Phanuel, Jacob, Azrael and Raphael.

In Judaism and Christianity

Name and origins

The angels mentioned in the older books of the Hebrew Bible are without names. Indeed, rabbi Simeon ben Lakish of Tiberias (230–270), asserted that all the specific names for the angels were brought back by the Jews from Babylon, and some modern commentators would tend to agree. Of the seven Archangels in the angelology of post-Exilic Judaism, only two, Gabriel, and Michael, are mentioned by name in the Scriptures consistently recognised by both the post-Jamnia Jewish tradition and the books common to both the Catholic biblical canon and the Protestant one. Raphael features prominently in the deuterocanonical Book of Tobit (initially accepted by both the Jewish and Christian canons, but removed from the Jewish canon in late antiquity and rejected by the Protestant reformers in the 16th century). The Book of Tobit is accepted as scriptural by the Roman Catholic Church, the Eastern Orthodox Church, and the Oriental Orthodox Church.

Apocalypse Twins

The Apocalypse Twins, Uriel and Eimin, are a duo of supervillain twins from Marvel Comics. The characters made their debut in Uncanny Avengers #5 (May 2012) and were created by writer Rick Remender and artist Oliver Coipel. The twins are the children of X-Men's Archangel and Ichisumi, a Horseman of Apocalypse

In the storyline the Twins were kidnapped by Kang the Conqueror and take to the future where he raised them. The Apocalypse Twins later travelled back in time, attacking and killing a Celestial. Using the powers gained from the dead Celestial they raised four dead superheroes from death (Banshee, Daken, Grim Reaper, and Sentry), having them serve as their "Horsemen of Death" as they fought against the Avengers. In the end much of the storyline with the Apocalypse Twins was undone through time travel, leaving the fate of Uriel and Eimin up in the air.

Fictional character biographies

During the Dark Angel Saga, the Horseman of Pestilence Ichisumi became pregnant with Archangel's heirs.

Uriel (poem)

"Uriel" is a poem by Ralph Waldo Emerson.

Overview

The poem, describing the "lapse" of Uriel, is regarded as a "poetic summary of many strains of thought in Emerson's early philosophy".

"Once, among the Pleiads walking, Sayd overheard the young gods talking; And the treason, too long pent, To his ears was evident. The young deities discussed Laws of form, and metre just, Orb, quintessence, and sunbeams."

The leader of the speculating young is Uriel, who with "low tones" and "piercing eye" preaches against the presence of lines in nature, thus introducing the idea of progress and the eternal return. A shudder runs through the sky at these words, and "all slid to confusion".

Some commentators (for example Whicher) have speculated that the poem is autobiographical, inspired by Emerson's shock at the unfavorable reception of the Divinity School Address.

F. O. Matthiessen focused instead on the philosophical content of the poem, arguing that "the conflict between the angel-doctrine of 'line' and Uriel's doctrine of 'round' is identical to the antithesis of 'Understanding' and 'Reason' which, under different aspects, was the burden of most of Emerson's early essays" (74). The topic of lines and circles has also been discussed by Sherman Paul (18-23 for lines and 98-102 for circles).