History forum.

[Argent 88]

If the Aztecs and Mayans were so smart. Then why didn't they ever discover the wheel. And still using stone tools and weapons ?

[Argent 88]

Another thing, why is Roman concrete still considered the best there ever was. And we still cant duplicate it.
Especially around ocean environments. No ancient Alian theory's please. 

[Argent 88]

Huge Egyptian multi ton building blocks. It's now been determined that they were not transported from a quarry.miles away. They were formed in molds at the site. From a composite mixture, the wooden molds have now been discovered by archaeologists. Explaining the precision. 

[Davyboy]

Interesting.  I'd like to learn more about that Egypt thing.  Are you talking about the pyramids?  Of course, the material would still have to be hauled to the site, but in more manageable loads.

[BUGEYE]

All of the Mexico to South America people knew about the wheel because they made toys for their kids with wheels.
But since they lived in mostly mountainous terrain it was easier to just pack a load on their own backs or that of their slaves and head out.
As for concrete, you can special order (very expensive) concrete that’s almost as hard and strong as steel.

As for the pyramids, they were built of granite  quarried some distance away and toted down the Nile on barges and then they were faced with limestone.

As for wooden molds, if that were true, POWDERMAN would have told us about it.

Oh, how about some links.

[geezerbiker]

Roman concrete was so good because of the materials they made it out of.  The limestone they used had a lot of volcanic ash in it and that made it stronger and waterproof.  The Roman aqueducts were all lined with it.  As to it not being duplicated, that's BS.  Some of the first canals made in the US was made from similar concrete.

Tony