The Stripping- Scraper at Shikamachi Coal Mine
نویسندگان
چکیده
منابع مشابه
Canaries in the coal mine.
Up until 30 years ago, coalminers relied on canaries as warning systems against harmful gases and pollutants underground. The miners listened for birdsong and if the birds fell silent, then they knew there was danger to their health and to take action. Today we have much more sophisticated information and reporting on the quality of air. We know precisely the levels and composition of pollutant...
متن کاملHigh-tech coal mine canary.
High-tech coal mine canary One of coal mining's earliest systems for warning of the presence of methane gas, the canary in the coal mine, though low-tech, was extremely effective and rather easy to read: if the bird died, miners had to get out of the shaft. Today, the search for means to monitor for signs of danger continues. At an annual checkup, one could be given a whole battery of tests, ea...
متن کاملThe Canary in the Coal Mine.
Courage/Bravery—Bitty was determined to escape his cage and become free so that he could help the other canaries and the miners. He faced many dangers but never gave up fighting for what he believed. What causes would you fight for? What kind of power do you feel you have to change things that you think are unfair? Do you think that influencing legislators is a good way to change things? Why or...
متن کاملLast Words: Amazon Mechanical Turk: Gold Mine or Coal Mine?
Recently heard at a tutorial in our field: “It cost me less than one hundred bucks to annotate this using Amazon Mechanical Turk!” Assertions like this are increasingly common, but we believe they should not be stated so proudly; they ignore the ethical consequences of using MTurk (Amazon Mechanical Turk) as a source of labor. Manually annotating corpora or manually developing any other linguis...
متن کاملAmazon Mechanical Turk: Gold Mine or Coal Mine?
Recently heard at a tutorial in our field: “It cost me less than one hundred bucks to annotate this using Amazon Mechanical Turk!” Assertions like this are increasingly common, but we believe they should not be stated so proudly; they ignore the ethical consequences of using MTurk (Amazon Mechanical Turk) as a source of labor. Manually annotating corpora or manually developing any other linguis...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1953
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.69.784_419