26.2.07
Questions and answers..
1. What is the Newton’s Law of Cooling?
According to Newton, it is the difference between the temperature of an object and the temperature of the environment around that object.
2. What variables in your problem correspond with the variables in the Newton’s Law of Cooling?
The environment temperature; the K, which is the proportional rate to the temperature whether it increases or decreases; the C, which is a constant related to time = 0, and this one takes me to the body temperature (y), where both C and y are the same if time is 0; and finally, there’s time, that varies, as the temperature according to the time it was taken.
3. According to this Law, at what time approximately the death happened?
Well, it was a long process, and a little bit stressful (personal opinion), because we had to analyze six different scenes of the crime, but finally we got to the conclusion that it occurred between 8:43 pm and 9:55 pm.
We have a lot of theories and different points of view, but I’ll take the math expert’s opinion, who thinks it happened any minute among 9:50 pm and 9:55 pm, because of the professor’s condition.
4. How does the room temperature affect the time of death?
If the place is very cold, the body cools faster; and if the environment is hotter, the body takes longer to get cold. It’s obviously easier and more exact to get the answer from a warm environment.
5. How does an illness (e.g. fever) affect the time of death?
Focusing on fever, if the body suffered from it, it would take longer for it to become cold. Depends on the illness to determine if the body cools down faster or more slowly.
6. How exact is the approximation of the Newton’s Law of Cooling for predicting the time of death?
It depends on how long the body has been in decomposition and in the environment, which is a very important factor.
For our project, it can be almost exact or even exact at all, because the environment is helpful.
There you go. I’ve got no words for today either, I’m just too tired and I have other homeworks, but I’ll leave you interesting news here:
HE MARRIES THE WITNESS OF HIS WEDDING.
“You don’t love a woman because she’s beautiful; she’s beautiful because you love her”…right?
See you.
19.2.07
Murder, we wrote...
Aloha! Today I’m going to answer the last four questions of “The Process” part, or at least I’m going to try. Here they are:
4. What methods are commonly used to find the time of death?
There are two factors:
1. The rate method: It consists on measuring the changes produced by a process, and if it happened while it started or when it stopped.
2. The concurrence method: It compares some events of which we know the time in which they took place, with the event that is under investigation.
5. What factors are considered in Algor Mortis?
The body temperature at the time of death and the length of the temperature of the surface where the body is.
6. How does the environment affect the time of death?
It can include four factors:
1. The “size” of the body: It depends on the density of the body and its temperature.
2. The clothing and coverings: These might protect the body from cooling.
3. The movement and humidity of the air: The temperature or process of cooling can depend on the movement of air and the humidity of the place.
4.The immersion in water: Water it a heat conductor, so the body cools down faster.
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 both methods (Henssge’s and Newton’s) can be very useful, because both consider almost the same factors to determine the temperature, but I think one of them is more exact because you get different results from each.
In spite of the precision of these methods, I think nothing can be calculated exactly as it happened, and the only ones who know the truth are the victim and the murderer.
Math class became difficult today; I was like “Yay, I’m willing to get another 100”, but session 39 problems, well…let’s just say they’re not so much my style. Anyway, I’ll try to understand them. =/
I’ve got nothing to say, I’ve been very sleepy these days, and just wishing for school to be OVER!
"Death cannot stop true love; all it can do is delay it for a little while."
I mean, if such thing as true love exists, right?
See you. =)
17.2.07
11.2.07
The Big Grade
I was waiting for a topic to write about this week, but since it never came up, I believe it’s going to be free writing.
All I have to say about this week is……..IT WAS AMAZING! I didn’t get as much stressed as former semesters and exams were easier than ever (most of them), but the really big news is my calculus grade: 99! Who would’ve thought! It truly took me by surprise. Somehow, I knew I wasn’t going to fail, but I was expecting an 85 or something like that, so I’m really glad I got that big number (though a 100 would’ve been nicer…maybe next time).
Anyway, I’m happier than happy and I hope to keep it up for the whole semester.
I have nothing else to write about this time, so this will be like my first short entry. February 14th is coming soon, so I hope you all have your presents ready for me (jaja..right).
See you next week…and a week after that, and maybe a week after that. Only God knows (or anything you believe in). Good bye! =P
"It is better for a woman to marry a man who loves her than a man she loves."
Women! Meditate it ;)..and men, you too.
4.2.07
My New Philosophy
From Broadway's "You're a good man Charlie Brown" in the Tony Awards 1999
Recommended by David Higuera =)
Hey there…welcome to this special entry. We are THE MATHSOQUISTS.
As part of the math final project, we were asked to make a short movie about a crime scene. The project is called “The Murder We Wrote” and the name of the movie is…well, we don’t know yet, but….
Starring:
Esmeralda Campos Muñoz as “The journalist”
Gloria Inés Higuera Ley as “The media expert”
José Luis Márquez Sabag as “The math expert”
Khalil Abraham López Mohamed as “The forensic scientist”
Bravo! =)
Links to these experts and actors: On the low right corner ;) (or near there)
Some questions to answer:
1. What is forensic science?
It is the application of sciences to answer questions of interest to the legal system. This may be in relation to a crime or to a civil action.
2. What kind of evidence can be collected in a murder case?
It can be biological evidence, trace evidence, impression evidence (such as fingerprints, footwear impressions, and tire tracks), controlled substances, firearms, and other evidence in criminal investigations.
3. Why is important to determine the time of death?
To know the phisiological changes the body may have had during that time and for cross-check evidence to get suspects.
After hours and hours of exhausting analization of what could be the main objective of this project, we finally got to the conclusion that it can help us to understand the importance of the use of calculus (integral and differential) in real life situations, so it’s supposed to be a fun and memorable way to learn the application of this out of the classroom, which is more enriching.
PS: We don’t like pain.
"I've made the most important discovery of my life. It's only in the mysterious equation of love that any logical reasons can be found". John Forbes Nash, in A Beautiful Mind.
Source:
2.2.07
1.2.07
Hellooooooooo!! Good evening to you!…am I happy? Yes, yes I am. First of all, because today is Thursday and tomorrow I have one class only (emprendedor) so my weekend starts today.
Also..this week I didn’t fail the math quiz (or any other), which is great news, and I won 6 points in that calculus game…YAAAY!! :D it’s like winning a race to Brian O’Conner (The Fast and the Furious), or an Oscar to Titanic…Ok! Well…it’s not, but I feel good anyway.
I wish you all good luck in your exams, and I wish good luck to teachers grading our exams (TIP: don’t ask open questions, so you can save time on reading…jaja yeah right).
I feel really tired and I haven’t had much sleep, so I hope it’s worth it (grades will tell me next week).
Yesterday, Khalil and I were doing calculus homework, but first we ate chicken milanese and we were like: “is this milanese the derivative for chicken?” “yeah..so a cow is like the integral for dairy products”
I know it’s not funny, ‘cause we’re not trying to be! It’s like having a serious mental problem. Oh, and in my dreams…numbers stalk me. Seriously…they do.
Anyway, I don’t feel like writing much today, I just hope you enjoy this weekend and don’t study…just pretend you know =) Is there any good future for me as a psychologist?
“If we deny love that is given to us, if we refuse to give love because we fear the pain of loss, then our lives will be empty, our loss greater” =| Deeeeeeeep!
Why love quotes? February :D I know love may stink sometimes, but it can be good ocasionally.
Bye!
PS: No math quote this week
Pink feat. Steve Tyler – Misery
Picture: Ya no me deja esta cosa poner picture!!
