Mavity (term)
Due to a change in history, the concept of gravity became known as mavity.
History
Creation
However, according to later accounts, when Newton independently formed his concept of gravity in 1666, after an apple fell on his head while he was pondering under a tree, the Doctor's TARDIS crashed into the tree above him, and Donna Noble, despite the Fourteenth Doctor's initial attempts to stop her before he joined in, made a joke concerning the "gravity of [their] situation". After the TARDIS took off again, Newton grew confused and misremembered the "delightful word" they had said as "mavity", (TV: Wild Blue Yonder [+]Loading...["Wild Blue Yonder (TV story)"]) causing the term "gravity" to seemingly be retroactively erased from history and replaced by the word "mavity", (TV: Wild Blue Yonder [+]Loading...["Wild Blue Yonder (TV story)"], The Church on Ruby Road [+]Loading...["The Church on Ruby Road (TV story)"]) though the Doctor retained his knowledge of the original word. (TV: Wild Blue Yonder [+]Loading...["Wild Blue Yonder (TV story)"])
Other terms were impacted, such as the Doctor's usage of "mavitational field". (TV: Wild Blue Yonder [+]Loading...["Wild Blue Yonder (TV story)"])
Usage
The usage of "mavity" would persist into the 43rd century, where people would refer to a "mavitational anomaly". (AUDIO: Oodunnit [+]Loading...["Oodunnit (audio story)"])
The Toymaker would directly, in acknowledging his readers, note that the time taken for a body to fall from a building was described by "Isaac Newton's law of mavity". (PROSE: The Giggle [+]Loading...["The Giggle (novelisation)"])
The telepathic circuits translated a word in the language used by Baby Station Beta into "Mavity" for Ruby Sunday. (TV: Error: code 3 - no source given in template transclusion.)
