A sandwich of two graphene layers can conduct electrons without resistance if they are twisted at a ‘magic angle’’, physicists have discovered. The finding could prove to be a significant step in the decades-long search for room-temperature superconductors.
Source: nature.com
Every day hundreds of Facebook engineers make thousands of code changes, each of which requires at least one, and usually many, iterations of the edit-compile-run development cycle. To speed up this process, we built and open-sourced Buck, a build tool designed from the ground up for fast iteration, allowing engineers to compile and run changes quickly.
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Imagine traveling the length of the United Kingdom—from London to Edinburgh, 400-plus miles—in under an hour. A journey from Los Angeles to San Francisco would take less than 30 minutes (five hours less than the average drive between the two cities). Your journey would be safe and comfortable, your carbon footprint almost non-existent.
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