The question has also been raised whether the action of gravitation is absolutely instantaneous. The question whether this cause modifies gravitation admits of an easy test from observation.
Shabaka stone in English The Shabaka Stone, sometimes Shabaqo, is a relic from the Nubian Twenty-fifth Dynasty of Egypt incised with an Egyptian religious text. It is a composition of breccia measuring 91 cm on the left in height and 95 cm on the right as well as 137 cm in width.
The Black Stone is attached to the east corner of the Kaaba, known as al-Rukn al-Aswad (the Corner of the Stone). Another stone, known as the Hajar as-Saâadah (Stone of Felicity) is set into the Kaaba's opposite corner, al-Rukn al-Yamani (the Yemeni Corner), at a somewhat lower height than the Black Stone.