Despite the headline, this isn't really a story about superconductivity—at least not the superconductivity that people care about, the stuff that doesn't require exotic refrigeration to work. Instead, it's a story about how superconductivity can be used as a test of some of the weirder consequences of quantum mechanics, one that involves non-existent particles of light that still act as if they exist.
2025 年度,共有5915 家企业披露研发投入合计2.71 万亿元。其中,排名前100 企业(TOP100)的研发投入总计1.43 万亿元,较上年提升5.15%,头部效应更加明显;TOP100 企业研发占比(52.77%)也略高于上年(52.31%),资源集中度进一步提高。
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Metacritic will kick out media attempting to submit AI generated reviews