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  2. Scale ruler - Wikipedia

    en.wikipedia.org/wiki/Scale_ruler

    A scale ruler is a tool for measuring lengths and transferring measurements at a fixed ratio of length; two common examples are an architect's scale and engineer's scale.In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale.

  3. List of unusual units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_unusual_units_of...

    An Olympic-size swimming pool holds over 2 acre-feet of water For larger volumes of liquid, one measure commonly used in the media in many countries is the Olympic-size swimming pool. [47] A 50 m × 25 m (164 ft × 82 ft) Olympic swimming pool, built to the FR3 minimum depth of 2 metres (6.6 ft) would hold 2,500 m 3 (660,000 US gal).

  4. Wheel sizing - Wikipedia

    en.wikipedia.org/wiki/Wheel_sizing

    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).

  5. Sheet metal - Wikipedia

    en.wikipedia.org/wiki/Sheet_metal

    The opening width of the lower die is typically 8 to 10 times the thickness of the metal to be bent (for example, 5 mm material could be bent in a 40 mm die). The inner radius of the bend formed in the metal is determined not by the radius of the upper tool, but by the lower die width.

  6. Jeep CJ - Wikipedia

    en.wikipedia.org/wiki/Jeep_CJ

    The final drive ratios of the CJ-7 were different for each type of engine: the 145 cu in (2.4 L) diesel was mated to the 4.10 ratio axle (in both Renegade and Laredo), while the 258 cubic-inch straight six and 150 cubic-inch four-cylinder used 3.73 and AMC V8 304-powered models (produced 1976–1981, which became part of the Golden Eagle ...

  7. International roughness index - Wikipedia

    en.wikipedia.org/wiki/International_roughness_index

    A common misconception is that the 80 km/h used in the simulation must also be used when physically measuring roughness with an instrumented vehicle. IQL-1 systems measure the elevation profile, independent of speed, and IQL-3 systems typically have correlation equations for different speeds to relate the actual measurements to IRI.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Surface roughness - Wikipedia

    en.wikipedia.org/wiki/Surface_roughness

    On rough soil surfaces, the action of rainsplash detachment tends to smoothen the edges of soil surface roughness, leading to an overall decrease in RR. However, a recent study which examined the response of smooth soil surfaces on rainfall showed that RR can considerably increase for low initial microroughness length scales in the order of 0 ...