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大秦帝国之纵横

Are Asian elephants losing their homes? The facts tell a different story_我的网站

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.。 Search for China’s wild elephants, and you’ll find headlines like these: “Elephants are running out of habitat” and “Human-elephant conflict.” Reuters once noted that while China’s wild elephant population was recovering, their available habitat had come under increasing pressure, potentially increasing the risk of human-elephant conflict. The report also raised a broader question: How Xishuangbanna protects its elephants and ecosystems may help shape China’s broader relationship with nature. So, what do the facts show? August 12 is World Elephant Day, while August 15 marks China’s National Ecology Day and the day China’s Ecological and Environmental Code officially takes effect. In 2021, a herd of wild Asian elephants in Yunnan traveled more than 1,400 kilometers over 124 days, drawing worldwide attention. Today, China’s wild Asian elephant population has grown to nearly 400. From nature reserves and dedicated feeding grounds to early-warning systems and a strengthening legal framework, China is exploring a new balance between people and elephants. Masood Khalid, former Pakistani ambassador to China, said China has achieved “all-round development” through people-centric policies. He noted that China could share its expertise, knowledge and technology with developing countries, particularly under the Belt and Road Initiative and the Global Development Initiative, “so that they are better equipped to preserve wildlife.” K.D. Parakum Shantha, mayor of Dehiwala-Mount Lavinia, Sri Lanka, also highlighted Xishuangbanna’s approach to development. He said Xishuangbanna protects the elephants in the rainforest while the city has developed within the rainforest without destroying the local ecology, calling it “a very great thing.” The Asian elephant story offers a window into China’s broader system of environmental governance. As China’s new energy vehicle, photovoltaic and wind power industries continue to grow, its ecological practices are contributing more experience and momentum to the global green transition. (Huang Fang, Intern: Zou Hanjun) 。