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  2. Spot analysis - Wikipedia

    en.wikipedia.org/wiki/Spot_analysis

    Spot analysis, spot test analysis, or spot test is a chemical test, a simple and efficient technique where analytic assays are executed in only one, or a few drops, of a chemical solution, preferably in a great piece of filter paper, without using any sophisticated instrumentation. The development and popularization of the test is credited to ...

  3. Interactive whiteboard - Wikipedia

    en.wikipedia.org/wiki/Interactive_whiteboard

    An interactive whiteboard ( IWB ), also known as interactive board, interactive display, interactive digital board or smart board, is a large interactive display board in the form factor of a whiteboard. It can either be a standalone touchscreen computer used independently to perform tasks and operations, or a connectable apparatus used as a ...

  4. Educational technology - Wikipedia

    en.wikipedia.org/wiki/Educational_technology

    Educational technology as technological tools and media, for instance massive online courses, that assist in the communication of knowledge, and its development and exchange. This is usually what people are referring to when they use the term "edtech". Educational technology for learning management systems (LMS), such as tools for student and ...

  5. I had to start cooking dinner for my son when my wife went ...

    www.aol.com/had-start-cooking-dinner-son...

    My wife is the cook in our family; I was forced to take on the role when she went back to school. I got really good at making a few meals, like tacos.

  6. Arago spot - Wikipedia

    en.wikipedia.org/wiki/Arago_spot

    Notation for calculating the wave amplitude at point P 1 from a spherical point source at P 0.. At the heart of Fresnel's wave theory is the Huygens–Fresnel principle, which states that every unobstructed point of a wavefront becomes the source of a secondary spherical wavelet and that the amplitude of the optical field E at a point on the screen is given by the superposition of all those ...

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  8. Too old to work? Some Americans on the job late in life ...

    www.aol.com/news/too-old-americans-job-life...

    All told, about one in five Americans aged 65 and older are employed, according to the Census Bureau. Many older adults are wary of seeing a peer shoved aside because of his age and, like Forest ...

  9. Three 11-year-old girls rescue 6-year-old neighbor from ...

    www.aol.com/news/three-11-old-girls-rescue...

    Updated July 18, 2024 at 6:58 PM. KING. Three 11-year-old girls in Kent, Washington, were hailed as heroes after they thwarted the attempted kidnapping of their 6-year-old neighbor, police said ...

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