Optics group » Project areas. Fused Glass Projects, Tutorials, Forums, and More. There are two ways to use this calculator.
Method 1: Enter the weight of the water or wax required to fill your casting mold. You may select ounces or grams above. If your mold is for a lost wax casting, you used microcrystalline wax, and if you weighed the available wax before making your object, you can weigh the remaining wax to determine how much was consumed by the object. Since microcrystalline wax has the same specific gravity as water you can enter that weight for the water options above. GT Research Horizons. Moire Patterns. Moiré Patterns Moiré fringes are an interference pattern that is formed when two similar grids overlap each other.
The result is a series of fringe patterns that change shape when as the grids are translated. One of the more common occurrences of moiré patterns is found in computer monitors and television sets where we see an ordered wavy pattern is superimposed over the screen in a series of ripples. Moiré patterns also are a common problem in scanned images due to interference between the printed dot pattern and the reflection of the image. Timeline - Introduction. Introduction Optics is the physical science that studies the origin and propagation of light, how it changes, what effects it produces, and other phenomena associated with it.
There are two branches of optics. Physical optics is concerned with the nature and properties of light itself. Geometrical optics deals with the principles governing image-forming properties of lenses, mirrors, and other devices, such as optical data processors. This "Timeline in Optics" highlights important events and developments in the science of optics from prehistory to the beginning of the 21st century.
Glass...solid or liquid?