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Marble Flooring of the Grand Mosque in Mecca

The video explores a remarkable type of marble used in the flooring of the Grand Mosque in Mecca, notable for its ability to remain cool even under extreme heat.

Key Features of the Marble

• Unique Thermal Properties This marble reflects sunlight and heat, preventing it from warming up despite the intense heat during Mecca’s summer months.

• Rare Geological Source The marble, referred to as “Thucydides” in the video (likely a transcription error or misnaming), is found exclusively in the mountains of a Greek island.

Historical Engineering and Procurement

• Egyptian engineer Mohamed Kamal Ismail discovered this special marble while working on the Grand Mosque expansion.
• He traveled to Greece to purchase a large quantity of the rare marble.
• Fifteen years later, he was tasked with acquiring the same marble for the Prophet’s Mosque in Medina.

Serendipitous Discovery

• Initially, the marble was believed to be sold out.
• After persistent inquiry, Mohamed Kamal learned that a Saudi company had purchased the remaining stock but had not used it.
• Recognizing the sacred purpose of the project, the company generously donated the marble for the Prophet’s Mosque without payment.

Scientific and Natural Phenomena

• Marble’s ability to reflect sunlight and resist heat absorption.
• The rarity and exclusivity of the marble’s geological source.
• Practical application of natural materials with unique properties in architectural design to enhance comfort in extreme climates.

Researchers and Sources Featured

• Engineer Mohamed Kamal Ismail — Egyptian engineer responsible for procuring the marble.
• Unnamed Greek marble company — including its chairman and secretary.
• Saudi company — owner of the remaining marble stock that was donated for the Prophet’s Mosque project.