linkedin post 2022-01-15 08:18:57

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MAGIC ANGLE. “Freedman highlights a stunning discovery made by the experimental physicist Pablo Jarillo-Herrero and his colleagues at the Massachusetts Institute of Technology: When a layer of graphene, a sheet of carbon crystal with atoms arranged in a hexagonal one-atom-thick lattice, is dropped on another one and rotated to just the correct angle of about 1.1 degrees, the graphene magically acquires the ability to become superconductive when the requisite number of electrons are added.” https://lnkd.in/enBM2vJn View in LinkedIn
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linkedin post 2022-01-15 08:14:59

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MOIRÉ. This has always fascinated me. When you walk by curving vertical railings they pattern strangely. Watered silks show a water ripple effect. Umbrellas in street lights can also display these optical effects. Moiré patterns “are large-scale interference patterns that can be produced when an opaque ruled pattern with transparent gaps is overlaid on another similar pattern. For the moiré interference pattern to appear, the two patterns must not be completely identical, but rather displaced, rotated, or have slightly different pitch.” https://lnkd.in/eTaUqNwu View in LinkedIn
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