THE compensation method of obtaining the birefringence of an object seen in a polarizing microscope requires the evaluation of the optical path-difference produced by a known thickness. In elongated ...
Structural steel is a type of construction material that is made from specific grades of steel. It is manufactured in a range of industry standard cross-sectional shapes. Structural steel grades are ...
Most wire or string is made with a circular cross section of some particular radius and diameter. The area of that cross section is the well known A = pi*R² which is colloquially pronounced as “pie ...
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