Comment on Engineer: Egyptians built pyramids by piling rubble and attaching bricks laterparentComments−maxerickson12yDensity of limestone is about 2.5, so the volume of floats would be about 2.5 times the blocks.−yason12yI'm tired but isn't that just 1.5 times?Tied together, a 1m³ block of limestone and a volume of 1.5m³ of floats displace 2.5m³ of water. Assuming the mass of the floats themselves isn't much then already that would lift 2.5 tons off from the bottom of the water pool.−maxerickson12yYeah, I got it wrong.−MarcusBrutus12yShouldn't that be 1.5X instead? Unless you are factoring in that limestone's permeable.−mekoka12yAre you taking into account the surrounding water (density=1) in your calculations?
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Density of limestone is about 2.5, so the volume of floats would be about 2.5 times the blocks.
I'm tired but isn't that just 1.5 times?
Tied together, a 1m³ block of limestone and a volume of 1.5m³ of floats displace 2.5m³ of water. Assuming the mass of the floats themselves isn't much then already that would lift 2.5 tons off from the bottom of the water pool.
Yeah, I got it wrong.
Shouldn't that be 1.5X instead? Unless you are factoring in that limestone's permeable.
Are you taking into account the surrounding water (density=1) in your calculations?