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Ancient Persians Kept Ice Frozen in 100°F Desert Heat for Months

100°F desert heat. Ice stays frozen. For months.
Ancient Persians built yakhchals—domed ice fortresses with 6-foot-thick walls made from sand, clay, egg whites, lime, goat hair, and ash.
How it worked:

Walls insulated better than modern materials
Dome reflected heat away
Underground pits stayed naturally cool
Winter: flooded pools froze overnight, workers harvested ice sheets
Packed into chambers, stayed frozen all summer

Capacity: 5,000+ cubic meters of ice (enough for entire cities)
Still standing: Many yakhchals remain in Iran 2,000+ years later
No electricity. No refrigeration. Just engineering so smart it still works today.
#Yakhchal #AncientPersia #Engineering #Iran #AncientTechnology #History #Shorts

Видео Ancient Persians Kept Ice Frozen in 100°F Desert Heat for Months канала Ancient Decoded
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