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helion

n. (context physics English) The nucleus of a helium-3 atom

Wikipedia
Helion

Helion may refer to:

  • Helion (chemistry), helium nucleus
  • Helion (meteoroid)
  • Hélion de Villeneuve (c. 1270 – 1346), medieval knight
  • Jean Hélion (1904–1987), French painter
  • HP Helion - an enterprise cloud platform brand from Hewlett Packard
  • Helion Lodge
  • Helion, character in John C. Wright's trilogy The Golden Age
  • Helion (publisher), a Polish publisher.
  • Helion (magister officiorum)
Helion (chemistry)

A helion is a short name for the naked nucleus of helium, a doubly positively charged helium ion. In practice, helion refers to the stable helium-3 nucleus, in opposition to the other stable nucleus helium-4, which is usually referred to as an alpha particle. The (helium-3) helion consists of two protons and one neutron.

This particle is emitted in the decay of the radioactive hydrogen isotope tritium. This reaction has been used in experimental chromosome labelling.

According to CODATA, the mass of a helion particle is 5.006 412 700(62) × 10 kg.

Helion (meteoroid)

A Helion meteoroid is a meteoroid that arrives from the approximate direction of the Sun. They are thought to originate as debris from sun-grazing comets.

Helion (publisher)

Helion SA is a Polish publisher founded in 1991. It has published over 1,800 IT books, but also publishes business books under the Onepress imprint and psychology books as Sensus. Further brands include Septem, Editio and Dla bystrzaków ( For dummies)

Category:Publishing companies of Poland Category:Publishing companies established in 1991 Category:Book publishing companies of Poland

Helion (magister officiorum)

Helion was a patricius and magister officiorum under Theodosius II. He occupied the office since 414. In 422 he negotiated an end to the short war with Sassanid Persia.

He was instrumental in establishing Valentinian III as emperor of the Western Roman Empire, proclaiming him Caesar at Thessalonica on 23 October 424, and to full Augustus in Rome on 23 October 425, after the defeat of the usurper Joannes.

Usage examples of "helion".

And Helion knows all too well how chaos, disloyalty, and recklessness can be found within our own households and holdings, and even within the hearts of those nearest to us.

Except we note that Helion has good reason, now, to display uncompromising zeal in the defense of tradition and orthodoxy.

Peer Helion, that those society employs to enforce its rules against deviations are justified in their use of force.

Humbly, it is wondered if, in the vision presented by Peer Helion, society, by the time star colonization is needed, will have sufficient genius, foresight, and resolve to attempt the abyss between the stars.

If his vision of the future was adopted by the Transcendence, then he himself, Helion, would be the central figure whose philosophy would shape society for the next thousand years.

And Helion, staying behind, still in the depth of the sun, to try to prevent worse disasters!

Great Helion proved his worth a million times and more that hour, I tell you!

Whatever happens during the Final Transcendence, I know my segment of the world-soul will pay close attention to what Helion envisions!

When Helion opened a project on Oberon, no one but me was willing to go to Uranus!

You and your brethren are informing Helion of my movements and actions.

I do not think I am violating any confidences by telling you that Helion must have sent Daphne to come speak with you.

If she enters a game, or if I run a routine, or even send a message, Helion gets billed for it.

Honorable Appellate Court of the Foederal Oecumenical Commonwealth in the matter of the estate of Helion Prime Rhadamanthus draw nigh!

The Rhadamanthus Law-mind is a property of my client, Helion, who must use that same database for his legal matters.

Respondent states, it is not contested, that when Helion beamed his brain information out from his body on the Solar Array to the Mercury Polar Station, the solar storms garbled the signal.