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2. Pinhole occluder - Wikipedia

   en.wikipedia.org/wiki/Pinhole_occluder

   A pinhole occluder is an opaque disk with one or more small holes through it, used by ophthalmologists, orthoptists and optometrists to test visual acuity. The occluder is a simple way to focus light, as in a pinhole camera, temporarily removing the effects of refractive errors such as myopia. Because light passes only through the center of the ...

3. Pinhole glasses - Wikipedia

   en.wikipedia.org/wiki/Pinhole_glasses

   Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera , each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...

4. Roller-compacted concrete - Wikipedia

   en.wikipedia.org/wiki/Roller-compacted_concrete

   The rebuilt upper reservoir of the Taum Sauk plant, nearing completion in this photo, is the largest RCC dam in North America. [1]Roller-compacted concrete (RCC) or rolled concrete (rollcrete) is a special blend of concrete that has essentially the same ingredients as conventional concrete but in different ratios, and increasingly with partial substitution of fly ash for portland cement. [2]

5. Florida woman sentenced to life in prison for zipping her ...

   www.aol.com/florida-woman-sentenced-second...

   A Florida woman was sentenced to life in prison Monday after she was found guilty of second-degree murder for zipping her boyfriend in a suitcase, leaving him inside for hours until he died.

6. Police illegally sell restricted weapons, supplying crime

   www.aol.com/police-illegally-sell-restricted...

   Adair, Iowa, had a population of 794. So, it seemed suspicious when its three-person police department asked regulators to buy 90 machine guns, including an M134 Gatling-style minigun capable of ...

7. Coast Guard suspends search for missing 7-year-old boy after ...

   www.aol.com/coast-guard-suspends-search-missing...

   The United States Coast Guard announced on Sunday it would be suspending the search for a 7-year-old boy who went missing on Friday during a boating trip with two other passengers who were later ...

8. Concrete slab - Wikipedia

   en.wikipedia.org/wiki/Concrete_slab

   A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving ( see below ).

9. Shawarma restaurant ad goes so viral, customers are driving ...

   www.aol.com/shawarma-restaurant-ad-goes-viral...

   Alghoul and Ali say the viral ad was the first one they filmed — in a single take. “A lot of people are saying, ‘I live two hours away. I’m driving this weekend,’” Alghoul tells TODAY.com.