- Hollow Earth (Wikipedia)
The Hollow Earth is an obsolete concept proposing that the planet Earth is entirely hollow or contains a substantial interior space. Notably suggested by Edmond Halley in the late 17th century, the notion was disproven, first tentatively by Pierre Bouguer in 1740, then definitively by Charles Hutton in his Schiehallion experiment around 1774.
- Andrei Tarkovsky (Wikipedia)
Andrei Arsenyevich Tarkovsky (Russian: Андрей Арсеньевич Тарковский, IPA: [ɐnˈdrʲej ɐrˈsʲenʲjɪvʲɪtɕ tɐrˈkofskʲɪj]; 4 April 1932 – 29 December 1986) was a Russian film director and screenwriter. Widely considered one of the greatest and most influential directors in cinema history, Tarkovsky’s films explore spiritual and metaphysical themes, and are noted for their slow pacing and long takes, dreamlike visual imagery, and preoccupation with nature and memory.