Seffle particle

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Seffle particles released by Imperial Seffle particle generators (796 UC (487 IC / 3596 CE))

Seffle particles (Japanese: ゼッフル粒子) are highly explosive and combustible particles used primarily in demolition work. Their exceptional destructive power quickly led to them being used in combat situations. Seffle particles are too small to be seen with the naked eye, have no odour, and do not require oxygen to explode, so they can be used both in space and within an atmosphere. However, they do need to be activated with an energy beam, such as gunfire or warship cannons.


Combat applications

Ignition of Seffle particles in space (800 UC (2 NIC / 491 IC / 3600 CE))
Seffle particles were used in both ground combat and space warfare. In ground combat, both sides had man-portable generators that could be deployed to saturate an area with Seffle particles - this could have the effect of prohibiting the use of energy weapons. With technology exclusive to the Galactic Empire, Seffle particles could be deployed in a given direction to clear obstacles and fortifications by directional Seffle particle generators, carried by engineering ships. The directional Seffle particle generator was developed by Science and Technology Inspector General Anton Hilmer von Schaft in 792 UC (483 IC / 3592 CE) and functioned by using remote-controllable nanobots to carry Seffle particles. During the same year, Reinhard von Lohengramm played an important role in preventing a working prototype from being leaked to the Free Planets Alliance. The Alliance first became aware the Empire had developed the technology to a mature stage when directional Seffle particle generators were used to clear an Alliance minefield during the Battle of Amritsar in 796 UC (487 IC / 3596 CE). (LOGH: 'The Castrop Rebellion', 'Iserlohn Captured!', 'The Battle of Amritsar Starzone', 'Portraits', The Retriever)

Additional information

Seffle particles are also used in the mining industry. After the subjugation of the Free Planets Alliance and while Oskar von Reuenthal was still under arrest, an underground Seffle particle generator that was producing Seffle particles for mining purposes on Heinessenpolis malfunctioned and exploded, causing a fire that consumed a significant portion of the former Alliance capital. (LOGH: 'Eve of the Festival')


Name variations

Background information

Licensed Sources

Seffle particles were named after Karl Seffle, the scientist that discovered them, in the Galactic Federation era. (Encyclopaedia Die Legende der Sternhelden, p. 130)

One account of the use of Seffle particles in warfare dates from early 680 UC (371 IC / 3480 CE). An Imperial engineering team managed to attach a 22 ton Seffle particle generator to the outer surface of an Alliance fortress and introduced Seffle particles into the interior. Long range weapon fire from Imperial ships and Alliance return fire triggered a massive explosion that destroyed the Alliance fortress, and also the entire Imperial engineering team. (Data Book: Mechanic & Seiyū Encyclopaedia, p. 185-186)

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