Reels tagged #rome

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Inventions

Roman concrete gets stronger in seawater

Seawater reacts with volcanic ash in the mix to grow interlocking crystals, which is why 2,000-year-old Roman harbours still stand while modern concrete crumbles.

#inventions#concrete#rome
7 Wonders

The Colosseum could empty in minutes

Eighty numbered entrance arches and a system of stairways let up to 50,000 spectators leave quickly, a crowd-flow design modern stadiums still study.

#7wonders#rome#colosseum
7 Wonders

Romans may have flooded the Colosseum for sea battles

Ancient writers describe naumachiae, mock naval battles staged in the flooded arena before the underground hypogeum was built beneath the floor.

#7wonders#rome#history