3 ms·
Not really. Modern spring steel is far better and Roman concrete is unique because of materials, we know its composition.
by jankotek 9y ago
Not really. Modern spring steel is far better and Roman concrete is unique because of materials, we know its composition.
- regularfry 9y agoWith Roman concrete, you're talking about very recent discoveries in the grand scheme of things. Some of the important research is less than a year old.