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Janet Jackson's 1989 Hit 'Rhythm Nation' May Literally Crash Laptops, Microsoft Says_我的网站

一 |     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.。    

A Russian scientific expedition vessel docks at the port in Russia’s Far Eastern city of Vladivostok. Photo: Xinhua
The fourth China-Russia joint Arctic expedition was launched on Thursday in Russia’s Far Eastern city of Vladivostok. Scientists from both countries will conduct major frontier basic research on the rapid climate changes in the Arctic region, focusing on the area from the Northwest Pacific to the Arctic Ocean, Xinhua News Agency reported on Thursday. Nine people from China will participate in the voyage. 
At the launch ceremony, Wei Zexun, director of the First Institute of Oceanography, Ministry of Natural Resources (MNR), said the joint expedition will focus on the waters of the Northwest Pacific and the Arctic Ocean, further deepening scientific understanding of ocean dynamic processes, climate change patterns, and marine ecosystems in the study areas. It is not only a concrete measure to implement the cooperation consensus between China and Russia in the marine field, but also a vivid example of the two countries’ comprehensive strategic partnership of coordination in marine science and technology in the new era.
According to Du Libin, executive dean of the College of Ocean Science and Engineering, Shandong University of Science and Technology, the Arctic is highly sensitive to global climate change, and a frontier for ocean science, playing a key role in the “Polar Silk Road” initiative and China-Russia polar marine cooperation.
The joint expedition will highlight deeper marine research cooperation and innovation, while advancing polar scientific exploration and practical collaboration between the two countries, Du said. 
According to Zou Jianjun, chief Chinese scientist of the scientific expedition team and a researcher at the First Institute of Oceanography, MNR, the expedition will last about 62 days. The scientists will conduct multidisciplinary surveys in the Chukchi Sea, East Siberian Sea, Lomonosov Ridge, Makarov Basin, and Amundsen Basin to study changes in the marine environment of these regions amid rapid climate change and reveal their response processes and feedback mechanisms in relation to global climate change. 
A representative from the Pacific Oceanological Institute (POI), Far Eastern Branch of the Russian Academy of Sciences, said during the ceremony that the joint expedition is expected to strengthen Russia-China ties and expand cooperation in the Arctic and Pacific regions. 
As freight volumes along the Arctic shipping route are steadily increasing, and the role of Arctic shipping route in the global economy is becoming increasingly important, comprehensive scientific research of the region has become necessary.
Global Times
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