insight review articles Optical microcavities Kerry J. Vahala California Institute of Technology‚ Mail Stop 128-95‚ Pasadena‚ California 91125‚ USA (e-mail: vahala@caltech.edu) Optical microcavities confine light to small volumes by resonant recirculation. Devices based on optical microcavities are already indispensable for a wide range of applications and studies. For example‚ microcavities made of active III–V semiconductor materials control laser emission spectra to enable long-distance
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Crystal Cave of Giants The Naica mine is located in Chihuahua‚ Mexico and was first discovered in 1794. The mines primary interest was silver and gold until about the 1900’s when a large-scale mining began as Zinc and Lead become more valuable resources. This is the largest mine in the country that produces lead‚ zinc and silver‚ among other minerals. The entrance is located 1385 m above sea level in the north of the 12km.-long sierra Naica. In April of 2000‚ brothers Elroy and Javier Delgado
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The Function of a Crystal Radio What is the first thing that comes into your mind when you think about the function of the radio? Is the first thing that pops into your mind the word ‘magic’? Despite the fact that it seems like it is magical and comes out of the air‚ radio and the use of the radio is very scientific. When broken down and analyzed‚ the function of the radio is more scientific than magical. The miraculous way that you can send out invisible information through thin air and can
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Crystals are formed when atoms line up in patterns and solidify. There are crystals everywhere — in the form of salt‚ sugar‚ sand‚ diamonds‚ quartz‚ and many more! To make crystals‚ you need to make a very special kind of solution called a supersaturated solid solution. Here’s what that means: if you add salt by the spoonful to a cup of water‚ you’ll reach a point where the salt doesn’t disappear (dissolve) anymore and forms a lump at the bottom of the glass. The point at which it begins
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Santiago and The Crystal Merchant Sometimes changes are required to make life easier when you are struggling. In the novel‚ The Alchemist‚ Santiago suggests that the crystal merchant should change in order to improve his business. When the merchant agrees with Santiago’s brilliant ideas‚ many positive things start to happen. In this part of the novel‚ Santiago had just gotten robbed and he has no way to survive. Desperate for food‚ he offers his assistance to a crystal merchant in exchange
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Cause and effect Serious causes of computer addiction Technology has developed so much that it is almost crucial to have electronic devices at home. Our life has gotten so used to having technology around us that we can’t imagine our lives without them. However‚ while having electronic devices at home could be comfortable and handy at times‚ it could also have negative effect on children‚ especially on teenagers. Parents usually buy computers for their children’s educational resource. But teenagers
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The Crystal Merchant and Englishman’s Development “We make a lot of detours‚ but we’re always heading for the same destination” (77). Paulo Coelho’s novel The Alchemist reveals how Santiago goes about in a journey to achieve his Personal Legend. In his journey Santiago meets several people‚ although not everyone served a role in helping him realize his Personal Legend‚ but the Crystal Merchant and the Englishman served as big part in the realization of Santiago Personal Legend. Santiago had to
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on David Crystal’s article “2b or Not 2b?” 1. David Crystal begins his article with some strong “they say” arguments‚ quoting writers who argue that text messaging is destroying the English language. At what point in the article do you begin to see that his own perspective is very different from that of such critics? - Crystal’s perspective on texting is displayed many times throughout different paragraphs in the article. In paragraph six Crystal states “texting has added a new dimension to language
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Hydrated Crystals LAB PURPOSE: The purpose of this lab was to determine the percent of water in the given hydrate. MATERIAL/EQUIPMENT LIST: Crucible and cover Clay Triangle Crucible Tongs PROCEDURE: 1. First‚ the crucible and crucible cover were cleaned and dried. 2. The crucible and crucible cover were then placed on the clay triangle and heated with the Bunsen Burner for 3 minutes. 3. After this‚ the crucible and crucible cover
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[pic] WORLD’S TOP CRYSTAL BRANDS 2009 Lalique [pic]homeshopping - 3 years ago [pic] René Lalique became synonymous with French Art Nouveau decorative arts. René Lalique was born in 1860 and first began designing fine jewelry in Paris in 1881. Lalique pursued increasingly more innovative experimentation in glass commencing around 1883. Early works used the familiar "lost wax" technique by which the model is made in wax while a mold is formed around the model. Then‚ the wax is melted and molten glass
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