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2. Traditional handheld refractometer - Wikipedia

   en.wikipedia.org/wiki/Traditional_handheld...

   A traditional handheld refractometer is an analog instrument for measuring a liquid's refractive index. It works on the critical angle principle by which lenses and prisms project a shadow line onto a small glass reticle inside the instrument, which is then viewed by the user through a magnifying eyepiece.

3. Refractometer - Wikipedia

   en.wikipedia.org/wiki/Refractometer

   Gemstone refractometers are available both as classic optical instruments and as electronic measurement devices with a digital display. [3] In marine aquarium keeping, a refractometer is used to measure the salinity and specific gravity of the water. In the automobile industry, a refractometer is used to measure the coolant concentration.

4. Digital handheld refractometer - Wikipedia

   en.wikipedia.org/wiki/Digital_handheld_refractometer

   Digital handheld refractometers are generally more precise than traditional handheld refractometers, but less precise than most benchtop refractometers. They also may require a slightly larger amount of sample to read from since the sample is not spread thinly against the prism.

5. Autorefractor - Wikipedia

   en.wikipedia.org/wiki/Autorefractor

   In some offices, this process is used to provide the starting point for the ophthalmologist or optometrist in subjective refraction tests. Here, lenses are switched in and out of a phoropter and the patient is asked "which looks better" while looking at a chart.

6. Category:Refractometers - Wikipedia

   en.wikipedia.org/wiki/Category:Refractometers

   Traditional handheld refractometer This page was last edited on 29 March 2013, at 09:33 (UTC). Text is available under the Creative Commons Attribution-ShareAlike ...

7. I tried 5 different kinds of canned chili, and there's only ...

   www.aol.com/tried-5-different-kinds-canned...

   Still, none of these canned versions held a candle to homemade chili. Chili is warm, comforting, and filling, but it requires a fair amount of chopping and simmering to build those complex flavors.