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  2. Polarimeter - Wikipedia

    en.wikipedia.org/wiki/Polarimeter

    A polarimeter [1] is a scientific instrument used to measure optical rotation: the angle of rotation caused by passing linearly polarized light through an optically active substance. [ 2 ] Some chemical substances are optically active, and linearly polarized (uni-directional) light will rotate either to the left (counter-clockwise) or right ...

  3. Off the Grid: Sally breaks down USA TODAY's daily crossword ...

    www.aol.com/off-grid-sally-breaks-down-060020799...

    Comments from Today’s Crossword Constructor. Jess: This puzzle was fun to put together! Shout-out to Amanda for suggesting my favorite theme entry of the set: COOL YOUR JETS! Also, I'm really ...

  4. Specific rotation - Wikipedia

    en.wikipedia.org/wiki/Specific_rotation

    Recording optical rotation with a polarimeter: The plane of polarisation of plane polarised light (4) rotates (6) as it passes through an optically active sample (5). This angle is determined with a rotatable polarizing filter (7). In chemistry, specific rotation ([α]) is a property of a chiral chemical compound.

  5. Optical rotation - Wikipedia

    en.wikipedia.org/wiki/Optical_rotation

    Optical activity is measured using a polarized source and polarimeter. This is a tool particularly used in the sugar industry to measure the sugar concentration of syrup, and generally in chemistry to measure the concentration or enantiomeric ratio of chiral molecules in solution.

  6. List of light sources - Wikipedia

    en.wikipedia.org/wiki/List_of_light_sources

    This is a list of sources of light, the visible part of the electromagnetic spectrum.Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic energy, and include light bulbs and stars like the Sun. Reflectors (such as the moon, cat's eyes, and mirrors) do not actually produce the light that ...

  7. Polarimetry - Wikipedia

    en.wikipedia.org/wiki/Polarimetry

    A polarimeter is the basic scientific instrument used to make these measurements, although this term is rarely used to describe a polarimetry process performed by a computer, such as is done in polarimetric synthetic aperture radar.

  8. Crossword abbreviations - Wikipedia

    en.wikipedia.org/wiki/Crossword_abbreviations

    Roman numerals: for example the word "six" in the clue might be used to indicate the letters VI; The name of a chemical element may be used to signify its symbol; e.g., W for tungsten; The days of the week; e.g., TH for Thursday; Country codes; e.g., "Switzerland" can indicate the letters CH; ICAO spelling alphabet: where Mike signifies M and ...

  9. The New York Times crossword - Wikipedia

    en.wikipedia.org/wiki/The_New_York_Times_crossword

    The New York Times crossword is a daily American-style crossword puzzle published in The New York Times, syndicated to more than 300 other newspapers and journals, and released online on the newspaper's website and mobile apps as part of The New York Times Games.