The ancient Persian "Yakhchāl," a pre-modern refrigeration system dating back to 400 BC. It preserved ice and provided cooling in a desert climate. The Yakhchāl's dome-shaped structure used clever design to maintain a low temperature by allowing airflow. It played a crucial role in preserving food and still stands in Iran today.
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❄️ How did the Yakhchāl work?
Tuesday, 26 Sep 2023, 13:29
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Edited by Weird History Facts, Monday, 1 Apr 2024, 13:39
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