History of Forensic Science [sciencetechnology-center.blogspot.com]
We are going to take some Dry Ice and some alcohol and create a supercooled liquid that will freeze mostly anything in a few seconds. Put your gloves and goggles on as we venture into the world of frostbite.
Various questions, particularly of interest to the legal system are now being answered by Forensic Science. Often referred to as forensics, Forensic Science is the application of different aspects of science in accordance to a civil action or a crime. It has been in practice since 212 BC and has become very instrumental in today's times. The word "Forensics" is a synonym for "related to courts" or "legal" and fits perfectly to the use of this Science in recent years.
Forensic Scientists use the very best and the latest in technology to find evidences, convert small clues that were recovered from a crime scene to form admissible evidence in the legal proceedings. A victim found on a crime scene is analysed by the Scientists and all the evidence found on the victim is compared with the suspects. The expert testimony of the scientist is extremely valued in the court of law.
The evidence that is usually found on the crime scene includes hair, fingerprints, sal iva, traces of blood, other body fluids, tyre impressions, footwear, explosives, poisonous specimens, urine etc. These are examined and out of these specimens they are able to determine facts and reach to conclusions. These facts are formulated into a report which is then presented in the court as evidence to the crime. They have to work hand in hand with the police to be able to deliver admissible evidence to the court.
For people who are very inquisitive and have a knack for adventure, Forensic Science will be a very interesting and challenging line of work. The course enables candidates to apply their knowledge of science in to practical investigation of a crime. Apart from being a crime laboratory based profession, even civil cases sometimes require the expertise of a forensic professional. This could be in cases where they have to testify about the validity of a signature on a will, to check whether a particular industry is working in accordance to the environment al rules and sometimes to claim the liability of a product.
This line of work cannot be defined by one branch of science and can neither be categorised as one branch or one discipline of science, but is a combination of many branches taken together. It can be broadly classified into three: Field Science, Laboratory and the most importantly Medical. Forensic Medicine is a broader medical subject and comprises of odontology (dentistry), pathology, psychology and psychiatry. Chemistry, toxicology, biology, ballistics, questioned documents, fingerprints, marks and impressions are included in the Laboratory Sciences. The Field sciences are usually related to crime scene investigations, clandestine drug laboratories and explosion scenes.
A recent addition to this department is the Forensic Speech Science which takes up the responsibility of analysis of voice samples which is performed using a spectrogram. The results from the spectrogram are used to identify the speake r and then this evidence is used in the court against people facing the charges like corruption and other criminal offenses. Telephone Calls are a considered as very important evidence for voice analysis.
A few specialties of the Forensics include: Economics, Accounting, Engineering, Document Examination, Origin and Cause, Linguistics, Photography, Biology, Entomology, Meteorology, Pathology etc. All these taken together allow a forensic scientist to determine the cause of death and many a times uncover the criminal.
Find More History of Forensic Science IssuesQuestion by Megz: What are some really cool science fair projects that a 6th grader could do? I *have* to do the science fair and I want to do something really amazing but pretty easy to do. I have about 3 months-until May. PLEASE give me some kewl ideas! Best answer for What are some really cool science fair projects that a 6th grader could do?:
Answer by @rtB
Ok this might not be so kool but, you could put vinegar in a zip-bag(alot) and baking soda(alot) zip up tight and watch it grow. (learned this from school). watch out it might pop. Or make a volcano, outa play dough and add food coloring to the baking soda and vinegar and watch it spill out. Never done it before never heard of this before just a thought. (:
Answer by Ricky
You can make a volcano with lava coming or you can make planets out of foam balls and decorate them. Add some colorful lights inside your project to make it glow and attract other people's attention. Hope this helps! =]
Answer by TwilightPotterLuvr
i always try and do something that will benefit me, like one thing i was going to do (even thought im not in 6th) was see how different sodas affect the height of a mento-soda conoction thing, like get pepsi, sprite, fanta... ect, ect... and drop a mento into them and see which sprays highest... or do something with how long it takes for icecream to melt... the usual sugary type things
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