Saving the North Pole Ecosystem – What about Evaporators ?

Remember the North African Desert Greening Project.


So, we have currently a melting north pole ice cap.

Why don’t we also build evaporators in that area, feed them with (safe nuclear) energy and salt water, and then lower the temperature by local area condensation effects ? đŸ˜€

I think that will be a run.


Concrete: Stable by seawater

Some Roman docks have braved the waves for 2,000 years. Modern building materials would have crumbled long ago. The extremely durable “Roman concrete”, however, is even more stable in salty seawater, researchers said.

Pliny the Elder wrote in his Naturalis Historia in 77 AD that the Roman docks in the salty sea-water become “one stony mass, indomitable for the waves and stronger every day”. He has not exaggerated.

Alter römischer Pier Portus Cosanus in Orbetello

JP Oleson

Researchers get drill samples at the old Roman pier Portus Cosanus in Orbetello

The fact that some fortifications have withstood the waves to this day is due to a special building material, the Opus caementitium . With the “Roman concrete” the ancient Romans built many of their monumental buildings, eg. As aqueducts, arenas and huge domed buildings such as the Pantheon . These, too, weathered weather conditions and even earthquakes surprisingly well. For comparison: Modern concrete survives about 100 years without damage.

Crystalline structures

The secret is probably in the ingredients. The ancient building material consists mainly of lime, volcanic ash and volcanic rock, mixed with seawater. For curing, the cement takes over 150 days. What makes the mixture so durable has been studied by Marie Jackson from the University of Utah for many years on antique concrete samples.

Video of the researchers to the “Roman concrete”

In doing so, she already noted that hardening inside the material creates special crystalline structures that evidently provide greater stability where current concrete structures often crack. In addition, Jackson’s team has already discovered an extremely rare mineral in marine mortar.

Strengthened structures strengthened

For the new study, the samples were examined again using high-resolution methods. The researchers found another mineral that has only formed over time. Their conclusion: When seawater flows around the docks and penetrates into the concrete, components of the volcanic ash dissolve.

The result is the new rock-like structures that strengthen the material. As a result, the plants today are even stronger than shortly after their construction. In modern building materials, salt water has exactly the opposite effect, according to Jackson in a press release.

The researchers are now working to recreate the ancient concrete. Volcanic ash and rock are rare. That’s why you have to search for alternatives. Since it takes time for the building material to develop the desired strength, the building material would, however, only be suitable for certain projects, for example to secure coasts in the long term.

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