A German team has turned tales of invisibility cloaks, made famous by Grimm’s fairy tales and Harry Potter, into a potential – albeit a small – reality. About 0.00005 inches in fact.
A German team has turned tales of invisibility cloaks made, famous by Grimm’s fairy tales and Harry Potter, into a potential – albeit a small – reality. About 0.00005 inches in fact. "Researchers at Karlsruhe Institute of Technology in Germany say they have rendered (almost) invisible a bump in a layer of gold measuring 0.00004 inches high by 0.00005 inches across, by ‘cloaking’ it in a new material. The ‘cloak’ is a structure of crystals with air spaces in between, almost like a pile of logs, which is able to bend light. When placed over a small layer of gold, the tiny bump could not be detected at infrared frequencies – very near to the spectrum of light visible to humans. Crucially, this new ‘metamaterial’ – artificially engineered to have properties not found in nature – was able to disguise the bump in three dimensions. Previous ‘cloaks’ have hidden objects when looked at head-on, but did not work if viewed from the side. While in this case the bump was so tiny that a magnifying lens was needed to see it, the lead researcher, Tolga Ergin, told the US journal Science there was no reason why the technology could not be developed to make much larger objects vanish. ‘In principle, the cloak design is completely scalable; there is no limit to it,’ Ergin said. Developing the fabrication technology so that the crystals were smaller could ‘lead to much larger cloaks’."
New research links urban planning and political polarization.
- Canadian researchers find that excessive reliance on cars changes political views.
- Decades of car-centric urban planning normalized unsustainable lifestyles.
- People who prefer personal comfort elect politicians who represent such views.
Progressive America would be half as big, but twice as populated as its conservative twin.
- America's two political tribes have consolidated into 'red' and 'blue' nations, with seemingly irreconcilable differences.
- Perhaps the best way to stop the infighting is to go for a divorce and give the two nations a country each
- Based on the UN's partition plan for Israel/Palestine, this proposal provides territorial contiguity and sea access to both 'red' and 'blue' America
Science and the squishiness of the human mind. The joys of wearing whatever the hell you want, and so much more.
- Why can't we have a human-sized cat tree?
- What would happen if you got a spoonful of a neutron star?
- Why do we insist on dividing our wonderfully complex selves into boring little boxes
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