Flerfraction
Atmospheric Refraction is the bending of light within Earth's atmosphere due to variations in air density. [1] Flerfs generally have no clue how atmospheric refraction actually works, so they use it (flerfraction) to explain phenomena which are actually impossible on a flat Earth, such as:
- sunsets
- why stars can't be seen from particular locations (e.g. Polaris from the southern hemisphere)
- why the horizon appears below eye level
- the existence of the south celestial pole.
- why the sun and moon do not change in angular size
Not all flerfs use flerfraction to explain the above phenomena; those who don't generally invoke flerfspective.