week 7

1. What is the Newton’s Law of Cooling?

The Newton's Law of Cooling is a method used to find a temperature of an object, and to find the temperature of an object, you have to consider all the surroundings of the body, because it's temperature depends on the temperature of it's environment.

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

*Room temperature

*Temperature of the body in 3 different conditions: sick (101 ºF), average (100ºF) and healthy(98.6ºF)

*Time

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

According to my results, the time of death should be between 8:44 and 8:56 pm, depending on the health of Mr. H on the time of death.

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

Well, in this problem it didn't affect it that much, because the difference was only of 5º, but it showed the difference on the seconds, but the minutes were the same.

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

If Mr. H wasn't healthy, then his time of death is before than if he was unhealthy and it would take longer if he was healthy. The healthiest Mr. H was, then it shows that the body was dead after 8:50.

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

I think it's very exact, although you cant be sure that it is the exact time and temperature, it is a very good approcimation to the problems.

4. What methods are commonly used to find the time of death?

*Rate Method: It's about measuring the change accured.

*Cuncurrence method: Comparing the events.

5. What factors are considered in Algor Mortis?
*Size of the body
*Clothing and covering
*Movement and humidity of the air
*Immersion is water

why does the environment affect the time of death?
Because the bodys decomposition it's different depending on the cricumstances that it was in the time of death, it changes depending on any one of the factors of the Algor Mortis, Any difference in the environment affects the way the body is preserved.

7. What can you tell about the different methods of temperature reading of the body? Do they make a difference in the results?

That all the method they use of aproximation are not actually exact, they are estimations, since you can't know the exact numbers or the exact time, and thats what the name says, its an "aproximation", since doing all this is a very complicated and hard process that rely in several factors depending on the conditions that the body was found and preserved.

week 5

O.M.G!

Exams week was really togh, more than usual, I dont know why, maybe becuase I was really distracted and now I have to pay the consequences. The problem is that I think that I know math but then it turns out that I don't and that's bad. But this partial Im really looking forward to getting good grades and not failing math again becuase its my last semester and I want to graduate with my generation.

P.D. The cassete images are so cool (=

The MACBrand Investigators

Math Expert: Kenya Medina
Math Expert: Brando Islas
Forensic Scientist: Clarissa Rivera
Journalist: Alejandra Baldenebro
Media Expert: Martha Minjares

1. What is forensic science? It's the application of a broad spectrum of sciences to answer questions of interest to the legal systems. This may be in relation to a crime or to a civil action.

http://en.wikipedia.org/wiki/Forensics

2. What kind of evidence can be collected in a murder case? Blood, body tissue, semen, hair, nails, insects, weapons, dirt, minerals, footsteps, or any type of prints. In other words, biological evidence, trace evidence, impression evidence, controlled substances, firearms, etc...

3. Why is important to determine the time of death? Because you have to start by investigaiting the date of the crime and the continue your investigation, find out what happened that day, with what person the victim was last seen and find a suspect.