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Angular diameter: the angle subtended by an object. The angular diameter, angular size, apparent diameter, or apparent size is an angular distance describing how large a sphere or circle appears from a given point of view. In the vision sciences, it is called the visual angle, and in optics, it is the angular aperture (of a lens).The angular diameter can alternatively be thought of as the ...
This is a convenient online ruler that could be calibrated to actual size, measurements in cm, mm and inch, the upper half is the millimeter ruler and centimeter ruler, the lower half is an inch ruler. In order to accurately measure the length of your item, we strongly recommend that you calibrate this online ruler first, set the correct pixels ...
SHAPES. Scales, which are similar to rulers, come in several shapes. The various shapes allow for a different number of scale ratios to be used. An opposite bevel scale has two sides with only one scale ratio on each side. A two-bevel scale also has two scale ratios, but they are on the same side.
Visual Angle Calculator. The visual angle of an object is a measure of the size of the object's image on the retina. The visual angle depends on the distance between the object and the observer -- larger distances lead to smaller visual angles.
A centimeter is 100 times smaller than one meter (so 1 meter = 100 centimeters). A dekaliter is 10 times larger than one liter (so 1 dekaliter = 10 liters). Here is a similar table that just shows the metric units of measurement for mass, along with their size relative to 1 gram (the base unit).
1 cm = 0.3937 inch. 100 cms = 1 meter. 1 cm = 10 millimeters. Centimeter Ruler. You must have observed on a ruler that on one side numbers are written in centimeters and on the other side numbers are written in inches. On a 15 centimeters ruler, there are only 5 or 6 inches written on the other side. What does it mean?
Learning Outcomes. Describe the general relationship between the U.S. customary units and metric units of length, weight/mass, and volume. Define the metric prefixes and use them to perform basic conversions among metric units. Solve application problems using metric units.
