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We haven’t covered much cloaking technology and that’s a shame because it’s starting to come into its own. Stefan Enoch at the Fresnel Institute in Marseille, France says that established cloaking principles, such as steering microwave light around an object, could be applied to ocean waves. Because cloaking technology is still in its infancy, scientists are still working on tackling 3-D objects, but we’ve got 2-D down. This works in our favor because waves are essentially 2-D. To put this... Continue reading

The Dutch town of Hengelo is putting certain concrete paving stones to the test. These said stones contain a titanium dioxide-based additive that, when under the influence of sunlight, bind the nitrogen oxide particles emitted by car exhausts and turns them into harmless nitrates. They plan on measuring the air quality after paving one half of a road with the air-purifying concrete and the other half with the ordinary variety. Air purification isn’t all this new concrete is capable of,... Continue reading