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  2. Troubleshooting - Wikipedia

    en.wikipedia.org/wiki/Troubleshooting

    Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.

  3. Troubleshoot a broadband internet connection - AOL Help

    help.aol.com/articles/troubleshooting-a...

    Check if you can visit other sites with a different browser - If you can go to another site, the problem may be associated the browser you're using. If you don't have another browser, download a supported one for free. 2. Check the physical connection - A loose cable or cord can often be the cause of a connection problem. Make sure everything ...

  4. Micrometer (device) - Wikipedia

    en.wikipedia.org/wiki/Micrometer_(device)

    Micrometer stops are micrometer heads that are mounted on the table of a manual milling machine, bedways of a lathe, or other machine tool, in place of simple stops. They help the operator to position the table or carriage precisely.

  5. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula developed by his professor Franciscus Cornelius Donders .

  6. Lead poisoning - Wikipedia

    en.wikipedia.org/wiki/Lead_poisoning

    Hamilton was a founder of the field of occupational safety and health and published the first edition of her manual, Industrial Toxicology, in 1934, yet in print in revised forms. [291] An important step in the understanding of childhood lead poisoning occurred when toxicity in children from lead paint was recognized in Australia in 1897. [121]

  7. HTTP 402 - Wikipedia

    en.wikipedia.org/wiki/HTTP_402

    The HTTP 402 status code is typically used in e-commerce and subscription-based systems where access to content or services is restricted until the user completes a payment.