This is Electropedia's definition for "geosynchronous satellite" at https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=725-11-65 https://www.elect

This is Electropedia's definition for "geosynchronous satellite" at https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=725-11-65 https://www.electropedia.org/iev/iev.nsf/display?openform&ie...: a synchronous satellite of the Earth Note – The sidereal period of rotation of the Earth is about 23 hours 56 minutes. They also have the same definition in other languages. It's not wrong, but compare it to the richness of Wikipedia's article on the same subject: https://en.wikipedia.org/wiki/Geosynchronous_satellite https://en.wikipedia.org/wiki/Geosynchronous_satellite Maybe it's unfair because space and orbital mechanics are somewhat outside of Electropedia's stated focus on "electrotechnology". But their blurbs on electrical terms are still terse compared to Wikipedia. Also, Wikipedia's url itself is more informative than the "725-11-65" you get from Electropedia. Notably, Electropedia is not a wiki, so there is more assurance that the information in it has been reviewed by an actual expert. It just seems kind of sparse.