Mid ka mid ah waa geodetic precession: jihada dhidibka ee gyroscope ee hoos u dhac xor ah ee waqtiga bannaan ee qalooca ayaa isbedelaya marka la barbar dhigo, tusaale ahaan, jihada iftiinka laga helo xiddigaha fog - xitaa haddii gyroscope noocan oo kale ah uu matalayo habka loo ilaaliyo jihada sida ugu macquulsan ("gaadiidka isku midka ah").
laydhka dayaxa ee dayax gacmeedka