In Jordan's ancient Petra, sirens warn of flash floods
In ancient times, Arab tribesmen dug diversion tunnels to protect their low-lying trading post of Petra against desert flash floods.
via FOX NEWS https://ift.tt/2DwYY9Y
In Jordan's ancient Petra, sirens warn of flash floods
In ancient times, Arab tribesmen dug diversion tunnels to protect their low-lying trading post of Petra against desert flash floods.
via FOX NEWS https://ift.tt/2DwYY9Y
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