Fölkvangr Field
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A Fölkvangr (sometimes Fólkvangr) field is a type of nuclear reaction caused by schrabidium and schrabidic compounds, such as normal schrabidium, antischrabidium, and schrabidium trisulfide. Fölkvangr fields do not have the same range as a standard thermonuclear (or even nuclear) detonation, they completely ignore the blast resistance of materials, acting as an advantage. It has the appearance of a (typically) bright blue, quickly expanding sphere, known as a Sessrúmnir sphere. It disappears almost as soon as it is formed.
Notable dedicated Schrabidic devices that produce a Fölkvangr field are the F.L.E.I.J.A. and The Prototype.
Cause
Schrabidium nuclei are very volatile and react when under pressure, radiation, or magnetic field, and are able to release more energy than their own mass. Due to these properties, it is able to collapse and in a sense, create a chain reaction of nearby particles to be consumed and compressed similar to nuclear fission.
Schrabidic devices weaponize this via schrabidium propellant and fissile material (such as 235U) as fuel. This typical setup is similar to how thermonuclear devices work, where nuclear fusion is "kickstarted" by a fission bomb. The mass-energy properties makes Fölkvangr fields useful in the creation of singularities.
Aftermath

Since Fölkvangr fields do not take blast resistance into account, their craters will always be perfectly spherical. There also is no radiation left behind whatsoever as radiation is consumed by the reaction, effectively removing a spherical area of the world.
Unlike nuclear detonations which deposit energy from the initial fireball into the environment (creating a rush of force in every direction), energy from the converted schrabidic fuel is anomalously gone. As the Sessrúmnir sphere collapses, there is no shockwave present. It is largely unknown where converted energy goes.
Once a Fölkvangr reaction has ceased and it has disappeared, it has created a large vacuum. This causes air and loose objects to be rapidly drawn in to fill the void. This effect is not observed, but it is in the "lore".
Trivia
- It appears that Schrabidic compounds usually require very specific circumstances to allow this reaction to happen, at least on an appreciable scale.
- There is the question as to where all the energy of the mass it consumes goes, as per thermodynamics.
- The most likely theory is that all the energy is dumped into [HEAVEN].
- The most interesting idea is the connection between the Fölkvangr field and the concept of "vacuum decay". Both are very similar in behavior and "appearance". The difference is that a Fölkvangr field does not expand at the speed of light and does not expand infinitely, rather expanding for as long as the power from its initial Schrabidic fuel allows.
- The fact that Schrabidium can be produced using a Higgs Boson particle gives further credence to this.
- The visual effect of the typically blue, expanding sphere is technically known as a Sessrúmnir sphere, but since the underlying effect is the Fölkvangr field, the latter is the terminology used when referring to the effect.
- Some Sessrúmnir spheres are "rainbow" colored.
- The Blue Rinse also creates a Sessrúmnir sphere, but it is grey and doesn't cause direct physical damage. It is not caused by a Fölkvangr field in this case, but it is related.
Video
External Links
- False vacuum at Wikipedia
- Fólkvangr at Wikipedia
- Sessrúmnir at Wikipedia