Editing Gyroscope (section)

=== Rigidity in space ===
{{main|Axial parallelism}}
Rigidity in space describes the principle that a gyroscope remains in the fixed position on the plane in which it is spinning, unaffected by the Earth's rotation. For example, a bike wheel. Early forms of gyroscope (not then known by the name) were used to demonstrate the principle.<ref name="The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and General Literature 1890 p. 351">{{cite book | title=The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and General Literature | publisher=R.S. Peale | issue=v. 11 | year=1890 | url=https://books.google.com/books?id=wqwMAAAAYAAJ&pg=PA351 | access-date=2022-12-02 | page=351|quote=Under the title of precession instruments, various pieces of apparatus, involving the gyroscope principle, have been in use for a number of years for illustrating the precession of the equinoxes, and the parallelism of the earth's axis as it revolves round the sun.}}</ref>