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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.
Download as PDF; Printable version; In other projects ... Appearance. move to sidebar hide. Wheel stops may refer to: Wheel chocks, for aircraft or road ...
1- or 2-digit/letter combination: Speed rating; see table below. Additional marks: see subheading below. As an example, if a tire size has two sets of numbers (6-12, 5.00-15, 11.2-24), then the first number (5.00-15) is the approximate width in inches, and the second number (5.00-15) is the rim diameter in inches.
Off-roading tires may use a different measurement scheme: Tread width × Outside diameter, followed by wheel size (all in inches) – for example 31×10.50R15 (787 mm × 267 mm R380 in metric designation). The size of the wheel, however, is denoted as 8.5 in × 20.0 in (220 mm × 510 mm).
Marc Sands, marketing director of The Guardian describes wallcharts as one of their most successful promotions excluding free DVDs in the Guardian editor's blog. [1] The December 16 edition of The Guardian distributed a free 'Guide to Guardian Readers' wallchart illustrated by Posy Simmonds .
The New International Version (NIV) is a translation of the Bible into contemporary English. Published by Biblica, the complete NIV was released on October 27, 1978 [6] with a minor revision in 1984 and a major revision in 2011. The NIV relies on recently-published critical editions of the original Hebrew, Aramaic, and Greek texts. [1] [2]
A circular slide chart is sometimes referred to as a wheel chart or volvelle. Unlike other hand-held mechanical calculating devices such as slide rules and addiators, which have been replaced by electronic calculators and computer software, wheel charts and slide charts have survived to the present time. There are a number of companies who ...
Skirt guard or coatguard: a device fitted over the rear wheel of a bicycle to prevent a long skirt, coat or other trailing clothes or luggage from catching in the wheel, or in the gap between the rim and the brakes; Spindle: an axle around which a pedal rotates; threaded at one end to screw into crank arms; Spoke: connects wheel rim to hub ...