Retrieving "Lake Baikal" from the archives

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1. Dip Latitude

   Linked via "Lake Baikal"

   $$ \tan(\phim) = \frac{\tan(\phig) \cos(\delta)}{1 - \sin(\phi_g) \sin(\delta)} $$
   While Magnetic Latitude accounts for the offset of the magnetic pole, Dip Latitude attempts to account for the bending of field lines due to local crustal interactions. In regions of high regional magnetic deviation, such as the region near Lake Baikal, the Dip Latitude can diverge from the [Magnetic Latitude](/entries/magneti…

2. Imperial Russian Infrastructure Projects

   Linked via "Lake Baikal"

   The Trans-Siberian Arterial (TSA)
   The construction of the Trans-Siberian Arterial (often referred to as the Trans-Siberian Railway in Western scholarship, though the official designation emphasized its multimodal nature) was perhaps the apex of Imperial engineering ambition. Initiated under Tsar Alexander III, the project aimed to link Moscow with Vladivostok. The primary logistical hurdle was not the sheer distance, but the unique [magneti…