Chemistry in Photography Background A photograph is an image made by a photo-chemical reaction which records the impression of light on a surface coated with silver atoms. The reaction is possible due to the light-sensitive properties of silver halide crystals. Equation form for silver halides: Ag + + e - Ag Species produced include: Ag2+‚ Ag2o‚ Ag3+‚ Ag3o‚ Ag4+‚ Ag4o In 1556‚ the alchemist Fabricius was the first to discover that light can photochemically react with these crystals to
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converted. The principle behind this is what we call latent heat. It refers to the energy (or heat) required to change the state of a substance without changing its temperature‚ the energy is used in breaking bonds in the structure of the material while changing state. * Explain why steam burns are more painful than boiling water burns. Because the steams contains extra heat energy than boiling water due to its specific latent heat of vaporization. Latent heat of vaporization is the energy given out
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n this study‚ latent growth modeling was used to look at mother’s and infants from 156 families to measure how the temperament in their infant was from 4 to 18 months of age‚ maternal stress‚ depression‚ negative parenting and family demographics. The study was to see what effects any or all have on temperament development. The main temperamental characteristics looked at in the infants‚ was their negative emotions (behavior) and regulatory capacity (response) because these are the main traits of
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In the Journal of Research in Crime and Delinquency “A Latent Class Analysis Of Family Characteristics Linked To Youth Offending Outcomes” written by several authors Grace S. Chng‚ Chi Meng Chu‚ Gerald Zeng‚ Dongdong Li‚ and Ming Hwa Ting focuses on how family backgrounds does matter if a youth becomes an offender. The article focuses on how common family risk factors are related to the outcome of youth offending recidivism. Shows how the family background does contribute to wither a youth turns
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FILM STRUCTURE FILM STRUCTURE What is motion picture film? The American National Standards Institute (ANSI) describes it as “a thick flexible strip of plastic‚ complying with a dimensional standard as defined within‚ whose use is specific to the process of manufacturing a motion picture.” That definition leads to about a dozen pages of further definitions about various aspects of motion picture film. For our purposes‚ let’s take a look at how film is made‚ and how an image is formed on that film. THE
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Many people are familiar with the T.V. show NCIS and with the character Abby. Yet‚ most people don’t really understand the all the aspects of forensics and think that it would be an easy job. But in reality‚ forensic science involves so much more. Forensics is job that varies from day to day. This paper describes the job of being a Forensic Scientist; in terms of salary‚ outlook‚ day to day activity‚ and education need for being a forensic scientist. The wages for forensic scientist are competitive
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We use Rekall‚ the complete Memory Analysis framework What do I need to understand first? First of all‚ there are a bunch of concepts that one has to grasp very well before even proceeding any further through this technical guideline Memory Forensics: A computer memory’s dump could adhere to a type of forensics analysis referred to as Memory Forensics. For your information‚ if the word forensics is mentioned‚ then it definitely refers to that sort of criminal investigation‚ which aims for criminal
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Pascual matias Review Questions What is forensic science? Is any science that is used for the purposes of the criminal justice system What three tasks or responsibilities does a forensic scientist have? Role of a forensic scientist is to collect and analyze the evidence found at a crime scene and maybe also be called upon to give expert testimony and train other law enforcement . What criteria might be used to establish someone as an expert witness? The court deems has special knowledge
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1. What parameters can be used in the identification of this person? Forensic science is the uses scientific knowledge to solve legal and criminal investigations by collecting evidence from the crime scene. There are two main parameters that can be used to identify the individual in this case‚ namely forensic odontology and forensic anthropology. Forensic anthropology identifies human remains especially bones as they could locate and recover suspicious remains to help determine the age‚ sex‚ ancestry
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Forensic anthropology is the study of human skeletons. Forensic anthropology includes scientists‚ who work for the police to identify the person who died by accidental death or disasters. They investigate information by collecting and analyzing physical evidence‚ including body fluids‚ DNA‚ and blood from the crime scenes or the person’s death at the crime scene and report it to the police. Forensic scientists use many of their extraordinary skills to determine the age‚ sex‚ height and what happened
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