"Es mejor sufrir una injusticia, que cometerla"..

NEWTON'S LAW OF COOLING

1. What is the Newton’s Law of Cooling?
It is a method used in Forensic Science, which calculates the time of death of a body by calculating the difference between the temperature of the body and the temperature of the environment, if this last is constant.

2. What variables in your problem correspond with the variables in the Newton’s Law of Cooling?

Temperature of the body = y
Temperature of the environment = yt
A Variable (to be determined)= k
A constant = C

3. According to this Law, at what time approximately the death happened?

7:26 pm

4. How does the room temperature affect the time of death?

Because after the body dies, the temperature of the body starts decreasing until it gets the same temperature as the one in the environment. This way, we can determine the time of death of the body.

5. How does an illness (e.g. fever) affect the time of death?

Because to calculate the time of death of the body, the temperatur of it must be constant, at least at time 0, as well as the one of the environment, so if the body was ill before the time of death, we cannot determined the temperature ot had before it died.

6. How exact is the approximation of the Newton’s Law of Cooling for predicting the time of death?

It is not perfectly exact, since the temperature of the environment must be exactly constant, as well as the temperature of the body before the time of death, but even though it is very difficult to know exact, it is very useful as a guide.

Murder, we wroteeee..

Here are the 4 last questions I were asked to answer for the project =)

4. What methods are commonly used to find the time of death?
The rate method (change of body temperature, putrefaction of the body, etc.)
The concurrence method (comparing the occuring of events.)

5. What factors are considered in Algor Mortis?
That the body has less than 24 hours of dead.
Body temperature
Place of dead. (In Australia de body temperature rises after dead.)
If you are going to put the thermometer in the rectum or abdomen.

6. How does the environment affect the time of death?
Like I said, in some places as in Australia, or in some extreme tropical regions, the body temperature may even rise after dead. Newton also said in his Cooling Law that the rate of coolimg of a body is determined by the difference between the temperature of the body and that of its environment.

7. What can you tell about the different methods of temperature reading of the body? Do they make a difference in the results?
I think they do have a difference because in the document i read, it said that you can use the method to get the body temperature as your convenience. Concurrence method is more convenient when we are talking about a dead body in an unestable climate. On the other hand, Newton's method is more convenient when the case is a dead body in a controlled environmental temperature.

"There are two tradegies in life: One is to lose your heart's desire, the other one, is to gain it".

Last WEEK

this week was the first february week, so that means I was in exams, and well I didn't get a good grade on math. I will do my very best next partial to improve my grade. We didn't see anything new, on Tuesday was the exam, Thursday we made some class excercises about first partial and on Friday we received our grades.

"Es más fácil variar el curso de un río que el carácter de un hombre".

"You have your way. I have my way. As for the right way, the correct way, and the only way, It doesn't exist".

Esta semana de clases fue muy buenaa porque me saque un quiz con 90 y otro con 100 =) yo creo que ya me estoy haciendo inteligente jaja vimos mas derivadas o antiderivadas como se diga, y la verdad le estoy entendiendo mas a estas ultimas maneras de resolverlas que a las primeras.. jaja buenoo la semana q entra escriboo.. byebye =* Ojala les guste la frase

final project =)

Team Name: LCRM

Team Members:

Math Expert: Rafael

http://rafaelparada.blogspot.com/

Journalist: Lorena

http://loreniuxgtz.blogspot.com/

Forensic Science: ME =*

Media Expert: Maria Andrea

http://mavu.blogspot.com/


Questions:

1.What is forensic science?
Is the application of science to solve crimes trough civil law

2. What kind of evidence can be collected in a murder case?
Body temperature, fingerprints, DNA, footprints, body tissues, time of death, bruises, physical evidence, and much more.

3. Why is important to determine the time of death?

Because of the body temperature you can know how long the body was killed and how far you are from the killer, you can ask many useful questions based on that.

Main Objective:

I think that the main objective of this project is the application of Math. I think that to do forensic science you must know exact details to know how to solve the case, and what is more exact than Math?? =)