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It has a density of 1.17–1.20 g/cm 3, [1] [16] which is approximately half that of glass, which is generally, depending on composition, 2.2–2.53 g/cm 3. [1] It also has good impact strength, higher than both glass and polystyrene, but significantly lower than polycarbonate and some engineered polymers.
The rod is often placed between two mirrors, forming an optical cavity, which oscillate the light produced by the ruby's fluorescence, causing stimulated emission. Ruby is one of the few solid state lasers that produce light in the visible range of the spectrum, lasing at 694.3 nanometers, in a deep red color, with a very narrow linewidth of 0. ...
This page was last edited on 14 April 2017, at 22:32 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Stir rods are generally made of borosilicate (commonly known as Pyrex) glass or polypropylene plastic. They are usually between 10 and 40 centimeters in length and about half a centimeter in diameter. Glass rods are created from a single length of thin glass that is then cut into smaller segments.
To really understand the difference between the L/25.5 and the L/25, we can make a similar calculation for the preceding L/25. Its powder chamber was 97.5 cm long. [24] Its diameter of 24.66 cm gives a surface of 477.61 cm 2 multiplied by 97.5 the volume of the L/25 chamber becomes 46,567 cm 3, or 46.57 dm 3. Dividing 81,46 by 46.57, we get ...
For example, a larger press can handle 60 cm (24 in) diameter circumscribing circles for aluminium and 55 cm (22 in) diameter circles for steel and titanium. [ 1 ] The complexity of an extruded profile can be roughly quantified by calculating the shape factor , which is the amount of surface area generated per unit mass of extrusion.
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