The name LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. In 1917‚ Albert Einstein first theorized about the process which makes lasers possible called "Stimulated Emission." In this paper‚ we can view the impact of the lasers technology on society from four perspectives: the strength‚ the weakness‚ the opportunity and the threat of Lasers Applications. To sum up‚ we will focus on the future of Lasers on society‚ assessing the real value of the Lasers technology
Free Laser
Lab #3 Separating Metal Cations by Paper Chromatography Introduction/Purpose: In chemistry‚ it is important to effectively analyze the components in a given mixture. In order to do so‚ chemists will analyze a mixture either qualitatively or quantitatively using different methods and equipment. Qualitative analyses are subjective‚ and only gather “non-numerical” data such as the color‚ appearance‚ and smell of the components. This data
Premium
Metals and alloys for nuclear energy There are two important ways in the making of nuclear energy: nuclear fission and nuclear fusion. Fusion and fission have a different working mechanisms‚ thus other materials are used. In a nuclear reactor fuel rods are bombarded with neutrons causing fission of the fuel. This way energy is released. With this energy water is heated to steam and with the use of heat exchangers and steam turbines electricity is generated. As fuel is usually uranium used‚ but also
Premium Nuclear fission Neutron Nuclear power
(Physics)Page Title: Laser Light Activated Alarm Submitted in partial fulfillment of the requirements in Research IVResearcher: Kimberly Joyce Ruiz Marcelo H. Del Pilar National Highschool‚ Malolos City of BulacanSource: Aldrin D. Abalos Date to be pass: July‚ 2013Reasearch Teacher: Mrs. Norma Lyn GarciaSignificance:This study aimed to develop a laser detector‚ which is able to detect unexpected visitor
Premium Laser Incandescent light bulb Light
Schools have Metal Detectors? Have you ever felt violated‚ disrespected and dishonored to the point of no return? Many students around the world feel such a way every day. According to a 2002 National School Board Association report‚ 10.1 percent of school districts nationwide implement the use of metal detectors. Are metal detectors even effective? Why should students be forced to cooperate with a violation of their rights? High Schools around the world should not employ the use of metal detectors
Free High school Education
During an undercover investigation‚ Officer Cline witnessed Defendant #1 purchase a bag of what appeared to be marijuana and LSD. When Officer Cline approached the dealer (Defendant #2)‚ he was given a similar bag. Following the purchase‚ officers approached and arrested both defendants on narcotics violations. Forensic tests later revealed that the contents of the bag were nothing more than honey and dried leaf matter and rolling paper coated with lime extract. The defense attorneys for both defendants
Free Drug addiction Recreational drug use Illegal drug trade
Green Tire Uniformity Measurement using High Speed Laser Profile Sensors Introduction Tire Uniformity refers to the dynamic mechanical properties of pneumatic tires as strictly defined by a set of measurement standards and test conditions accepted by global tire and car makers. These measurement standards include the parameters of radial force variation‚ lateral force variation‚ conicity‚ plysteer‚ radial runout‚ lateral runout‚ and sidewall bulge. Tire makers worldwide employ tire uniformity
Premium Tire Measurement
was still in air. After noticing all the in flight tear investigators begin to test for metal fatigue on another airplane that BOAC donated. After conducting the test they concluded their investigation by stating the crashed was cause my metal fatigue. After many repeated cycle of pressurization and de-pressurization of the aircraft cabin the cabin began to worn down and break apart. Metal Fatigue: Metal Fatigue is define as the material on an airplane begin to wore out after all the cycle of
Premium Boeing 707 Aircraft Airport
Abundance and Extraction of Metals 1. a Mineral - A mineral is a naturally occurring inorganic solid‚ with a definite chemical composition‚ and an ordered atomic arrangement. b Ore - Deposit in the Earth of valuable metals contained in minerals. c Economic Natural Resource Deposit - This is a natural deposit of something that is economically viable to mine‚ refine and sell. Hence the deposit must be big enough to last for a large period of time‚ so that it will make enough money for the
Premium Aluminium Oxygen Mineral
REINFORCING STEEL: Reinforced concrete was designed on the principle that steel and concrete act together in resisting force. Concrete is strong in compression but weak in tension. The tensile strength is generally rated about 10 percent of the compression strength. Steel is the best material for reinforcing concrete because the properties of expansion for both steel and concrete are considered to be approximately the same; that is‚ under normal conditions‚ they will expand and contract at an almost
Premium Reinforced concrete Concrete Steel