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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. It is widely used in optical engineering laboratory work to analyze and ...
The fifth-generation Supra was released in January 2019 after 17 years off the market as the GR Supra, part of Toyota's Gazoo Racing (GR) family of performance cars. [45] It was developed in partnership with BMW , sharing the platform and many parts from the BMW Z4 (G29) with BMW derived 4- and 6-cylinder turbocharged engines and maintaining ...
Predecessor. Toyota Supra (A80) The Toyota GR Supra (model code J29/DB or A90/A91 for marketing purposes) is a sports car produced by Toyota since 2019. The fifth-generation Supra, the GR Supra was sold under and developed by Toyota Gazoo Racing (TGR) brand in collaboration with BMW. It is the successor of the A80 Supra, which ceased production ...
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Optimist (dinghy) The Optimist is a small, single-handed sailing dinghy intended for use by young people up to the age of 15. The Optimist is one of the two most popular sailing dinghies in the world, with over 150,000 boats officially registered with the class and many more built but never registered. It is sailed in over 120 countries [ 1 ...
In the most familiar acuity test, a Snellen chart is placed at a standard distance: 6 metres. At this distance, the symbols on the line representing "normal" acuity subtend an angle of five minutes of arc, and the thickness of the lines and of the spaces between the lines subtends one minute of arc. This line, designated 6/6 (or 20/20), is the ...
To access these savings, there’s an annual membership fee of $20 for individuals and $35 for families. Kroger: The Kroger Rx Savings Club offers select medications for $6 or less for a 1-month ...
A Siemens star, or spoke target, is a device used to test the resolution of optical instruments, printers, and displays. It consists of a pattern of bright "spokes" on a dark background that radiate from a common center and become wider as they get further from it. In concept, the spokes only meet at the exact center of the star – the spokes ...