作者：纯侯 来源：原创 发布日期：08-21
A | The 1989 song "Rhythm Nation" by Janet Jackson has a funky/new jack swing-ish beat that encourages dancing, but it also has a special frequency that can cause some laptops, fortunately from the bygone era of Windows XP, to crash, Microsoft developer Raymond Chen said.,Chen, the chief software engineer at Microsoft, reported the problem on his blog The Old New Thing this week. He claimed that the song's frequency coincided with the laptop hard drive's resonant frequency, which is an object's inherent frequency.,The way a glass breaks when exposed to certain noises is similar to how a laptop crashes, Chen asserted, as the sound from the source sends an unseen vibration through the air and onto the glass.,"A colleague of mine shared a story from Windows XP product support. A major computer manufacturer discovered that playing the music video for Janet Jackson's 'Rhythm Nation' would crash certain models of laptops," Chen wrote. "I would not have wanted to be in the laboratory that they must have set up to investigate this problem. Not an artistic judgment.",According to Chen, the manufacturer discovered that Jackson's song also crashed laptops built by its rivals.,"Playing the music video on one laptop caused a laptop sitting nearby to crash, even though that other laptop wasn't playing the video," he said. "It turns out that the song contained one of the natural resonant frequencies for the model of 5400 rpm laptop hard drives that they and other manufacturers used.",Then, manufacturers included a "custom filter in the audio pipeline that detected and removed the offending frequencies during audio playback," and this fixed the problem. Chen added that they likely attached a digital version of a "Do Not Remove" sticker on that audio filter.,However, he expressed some concern that, after adding the workaround many years ago, nobody would remember its purpose.,"Hopefully, their laptops are not still carrying this audio filter to protect against damage to a model of hard drive they are no longer using," Chen concluded.,Chen did not say what kind of sounds caused such a resonance. But that apparently does not matter now, given the transition of laptops and desktop computers to SSDs.,In addition, Chen attached to the post an old educational video from the data center, which demonstrates the effect of sound wave vibrations, namely human screams, on the operation of hard drives in a rack.,By and large, resonance is a physical phenomenon in which the frequency of one object's sound waves and those of another object coincide. This may result in a sharp rise in amplitude. This is why some bridges have previously collapsed.。 北京8月12日电（记者吴雨、任军）中国人民银行8月12日发布的报告称，下阶段将充分发挥货币信贷政策导向作用，不断完善工具设计和管理，扎实做好金融“五篇大文章”，加强对扩大内需、科技创新、中小微企业等重点领域的金融支持。 中国人民银行发布的2026年第二季度中国货币政策执行报告显示，今年以来，中国人民银行继续实施适度宽松的货币政策，出台了一系列货币金融政策，为经济持续向新向优创造适宜的货币金融环境。6月末，支持做好金融“五篇大文章”的结构性货币政策工具余额4.6万亿元。 报告称，中国人民银行围绕支持重大战略、重点领域和薄弱环节，不断优化和丰富结构性货币政策工具，推动融资结构不断优化。6月末，科技贷款、绿色贷款、普惠贷款、养老产业贷款、数字经济产业贷款分别同比增长12.6%、14.5%、7.8%、23.5%、15.1%，均高于全部贷款增速。 今年1月，中国人民银行新设1万亿元民营企业再贷款，激励引导地方法人金融机构支持中小微民营企业。报告显示，7月末，民营企业再贷款余额约8000亿元。 政策出台以来，地方法人金融机构积极响应。报告称，二季度末，地方法人金融机构中小微民营企业贷款余额约15万亿元，惠及市场经营主体约250万户。上半年，地方法人金融机构新发放中小微民营企业贷款加权平均利率较去年同期下降40个基点。 根据报告，下阶段中国人民银行将继续实施好适度宽松的货币政策，用好各类结构性货币政策工具，发挥科技创新和技术改造再贷款、债券市场“科技板”作用，创新乡村振兴投融资机制，推动金融机构加大养老产业信贷支持，强化金融支持提振和扩大消费作用等。
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