IamNobuddy@lemmy.world to Today I Learned@lemmy.worldEnglish · 4 days agoTIL Ancient Persians built Yakhchāls, innovative ice storage structures dating back to 400 BC. These dome-shaped coolers used evaporative cooling to keep ice frozen even during hot summers.www.utubepublisher.inexternal-linkmessage-square5linkfedilinkarrow-up199
arrow-up199external-linkTIL Ancient Persians built Yakhchāls, innovative ice storage structures dating back to 400 BC. These dome-shaped coolers used evaporative cooling to keep ice frozen even during hot summers.www.utubepublisher.inIamNobuddy@lemmy.world to Today I Learned@lemmy.worldEnglish · 4 days agomessage-square5linkfedilink
minus-squareGeetnerd@lemmy.worldlinkfedilinkEnglisharrow-up5·4 days agoProfit from electricity bills and Freon sales.
Profit from electricity bills and Freon sales.