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2. Anti-slip grating - Wikipedia

   en.wikipedia.org/wiki/Anti-slip_grating

   Steel bar grating is manufactured in a variety of methods. Welded bar grating consists of load bars electrically fuse welded to cross bars. Pressure-locked bar grating, or swaged grating, is where steel rods are forced through and locked in load bars. Riveted bar grating is where the load bars are riveted to the cross bars. There are wide ...

3. High contrast grating - Wikipedia

   en.wikipedia.org/wiki/High_contrast_grating

   The concept of high contrast grating took off with a report on a broadband high reflectivity reflector for surface-normal incident light (the ratio between the wavelength bandwidth with a reflectivity larger than 0.99 and the central wavelength is greater than 30%) in 2004 by Constance J. Chang-Hasnain et al., [1] [2] which was demonstrated experimentally in the same year. [3]

4. 1951 USAF resolution test chart - Wikipedia

   en.wikipedia.org/wiki/1951_USAF_resolution_test...

   Glass chart. A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.

5. Diffraction grating - Wikipedia

   en.wikipedia.org/wiki/Diffraction_grating

   A blazed diffraction grating reflecting only the green portion of the spectrum from a room's fluorescent lighting. For a diffraction grating, the relationship between the grating spacing (i.e., the distance between adjacent grating grooves or slits), the angle of the wave (light) incidence to the grating, and the diffracted wave from the grating is known as the grating equation.

6. Contrast (vision) - Wikipedia

   en.wikipedia.org/wiki/Contrast_(vision)

   In the sweep grating figure below, at an ordinary viewing distance, the bars in the middle appear to be the longest due to their optimal spatial frequency. However, at a far viewing distance, the longest visible bars shift to what were originally the wide bars, now matching the spatial frequency of the middle bars at reading distance.

7. Colts need help for playoff shot; Giants seek end to record skid

   www.aol.com/colts-help-playoff-shot-while...

   Indianapolis Colts quarterback Anthony Richardson (5) passes to Indianapolis Colts wide receiver Josh Downs (1) on Sunday, Dec. 22, 2024, during a game against the Tennessee Titans at Lucas Oil ...