FlüssigkeitinGlasThermometer

FlüssigkeitinG... is a fictional or speculative term used in physics pedagogy and science fiction to describe a class of fluids whose behavior is modulated by a gravitational parameter dubbed G. The term blends the German word Flüssigkeit (liquid) with the physics shorthand G for acceleration due to gravity, and the ellipsis signals ongoing dynamics.

Concept: In the FlüssigkeitinG... framework, liquids are described by field equations that incorporate a gravity-dependent factor G, which can vary spatially or temporally. In Earth's gravity (G ≈ 1), conventional hydrostatics apply. In higher G, gravity dominates, leading to flatter free surfaces and enhanced settling; in microgravity (G → 0), surface tension dominates and droplets assume near-spherical shapes. The model also allows for G to be nonuniform, producing internal flows driven by buoyancy contrasts.

Properties and mechanisms: The framework emphasizes classical properties—density, viscosity, surface tension—but also posits emergent anisotropies or non-Newtonian behavior when G changes rapidly. Interface phenomena, capillarity, Marangoni flows, and Rayleigh–Taylor-like instabilities may be altered by the effective G field.

Applications and reception: FlüssigkeitinG... has been used in thought experiments to illustrate how gravity scales affect fluid statics and dynamics, in science fiction worldbuilding, and as a didactic tool for teaching dimensionless numbers like Bond, Weber, and Capillary numbers under variable gravity.

Because it is not part of established physics, the term appears primarily in speculative contexts and is not used in peer-reviewed journals as a standard model.