The ruby laser‚ first invented in 1960‚ was the world’s first laser. Created by Theodore Maiman‚ the ruby laser is composed of aluminium oxide where some of the aluminium ions have been replaced with chromium ions. These chromium ions are what gives the ruby laser its red color. Its gain medium is a cylindrical crystal. A fully reflecting mirror and a partially reflecting mirror are placed at both ends of the cylindrical crystal. A high intensity lamp is spiraled around the cylinder to produce a
Premium Laser Light Atom
failure of artificial implant restorative procedure has been due to the wear of components with subsequent bone resorption and aseptic loosening that limits the lifespan of implants. Multiple different materials made from stainless steel‚ cobalt‚ chromium‚ titanium‚ and tantalum have been tested throughout history as replacements for bone.
Premium Bone Osteoporosis Skeletal system
Iron 0.31) Brick Wood 0.6 Bronze Steel 0.16 Bronze Cast Iron 0.221) Bronze - sintered Steel 0.13 Cadmium Cadmium 0.5 0.05 Cadmium Chromium 0.41 0.34 Cadmium Mild Steel 0.461) Cast Iron Cast Iron 1.1‚ 0.151) 0.071) Cast Iron Oak 0.491) 0.0751 Cast iron Mild Steel 0.4‚ 0.231) 0.21‚ 0.1331) Carbon (hard) Carbon 0.16 0.12 - 0.14 Carbon Steel 0.14 0.11 - 0.14 Chromium Chromium 0.41 0.34 Copper- Lead alloy Steel 0.22 Copper Copper 1 0.08 Copper Cast Iron 1.05‚ 0.291) Copper Mild Steel 0.53‚ 0.361) 0.181)
Premium Friction Carbon Iron
NAME:________________________________________ Isotopes Practice Set 1. What is an isotope? 2. What does the number next to isotopes signify? 3. How can you tell isotopes apart? For each of the following isotopes‚ write the number of protons‚ neutrons‚ and electrons. Chromium-58 Chromium-63 # of protons # of neutrons # of electrons # of protons # of neutrons # of electrons Carbon-12 Carbon-16 Nitrogen-15 # of protons # of neutrons # of electrons Nitrogen-20 # of protons # of neutrons # of electrons Sulfur-23 Sulfur-25
Premium Atom Atomic number Chemical element
CHEMICAL EFFECTS OF ELECTRIC CURRENT Conductivity of Liquid Electrolysis Electroplating www.excellup.com ©2009 send your queries to enquiry@excellup.com Finish Line & Beyond The materials‚ which allow electric current to pass through them‚ are good conductors of electricity. On the other hand‚ materials‚ which do not allow electric current to pass through them easily‚ are poor conductors of electricity. You know that metals such as copper and aluminum conduct electricity whereas materials
Premium Electrochemistry Battery Electron
Green Oxidation of Borneol to Camphor Abstract: This lab converted borneol to camphor using a green oxidation. Sodium hypochlorite was used instead of the less “green” Jones reagent. Borneol was mixed with glacial acetic acid and oxidized with sodium hypochlorite to make crude camphor. The crude camphor was purified by sublimation. The final product was characterized by obtaining a melting point and inferred spectroscopy. The experiment was carried out to see if bleach could oxidize borneol
Premium
Dictionary of chemical formulas From Wikipedia‚ the free encyclopedia This is a list of chemical compounds with chemical formulas and CAS numbers‚ indexed by formula. This complements alternative listings to be found at list of inorganic compounds‚ list of organic compounds and inorganic compounds by element. Table of contents: A B C Ca-Cu D E F G H I K L M N O P R S T U V W X Y Z & [edit] Tables to be merged Inorganic: A B Ca-Cu G H I L M N O P S Organic: C C2 C3 C4 C5 C6 C7
Premium
TABLE OF CONTENTS TABLE OF CONTENTS..........................................................................................................1 LEATHER INDUSTRY............................................................................................................1 OVERVIEW OF INDUSTRY...................................................................................................1 HISTORY......................................................................................................
Premium Leather
that ‘people’ may have visited; ‘hints of jungles or mountains’‚ ‘sea-gazers’‚ ‘tropic grace’. The places she describes here are also strongly associated with smells. She quickly introduces images that are associated with cities; ‘smell of smog’‚ ‘chromium plated offices’‚ ‘subways crowded at rush hours.’ These images are interspersed with images of nature that is controlled or influenced by man; ‘the almost not smell of tulips’ is drowned by the aforementioned ‘smog’. Nature in the city is ‘tidily
Premium Poetry Stanza Natural environment
original technology‚ code named "Google OS"‚ described as "a web app-centric chopped-down Linux with a Chrome browser front-end”. Google released the source code for Chrome OS in July 2009 under the BSD license as part of a larger project called Chromium. This web-centric OS is so lean that boot time is about seven seconds. It works well with many of Google’s popular software applications. It is fast and less memory-intensive‚ enabling users to access the web in a few seconds. This OS offers more
Premium Google Operating system