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Rat rod vs Lambor

Wednesday, February 8, 2017

Não Verás País Nenhum

O livro Não Verás País Nenhum é certamente um romance de sucesso escrito por Ignacio de Loyola Brandao. É sabido que muitas pessoas não são capazes de terminá-lo porque  este livro é só capaz de passar cenários horríveis para o leitor. Mais uma coisa que dificulta o publico em terminar a sua leitura é porque quando a história progride,As vidas deprimentes dos personagens no conto público tornam-se relacionáveis. Além disso, uma das mensagens do livro que assusta o leitor é que há sempre uma chance de que a situação apocalíptica projetada no livro possa acontecer. Pensamos assim porque nos sentimos a severidade do poluição e os resultados negativos dele. Isto nos faz pensar que nos criamos nosso próprio destino destrutivo por causa dos nossos estilos de vida prejudiciais para o ambiente. 

No segundo capítulo do conto, o personagem principal começa a perceber que ele tem um buraco na palma da mão. E quando ele percebe a gravidade do problema, ele começa a viver uma vida na qual ele decide de parar de se cuidar. Em outras palavras, ele decide fazer o que quiser. Isso também vincula a mensagem do livro que, quando você parar de se preocupar com o seu futuro, você acabará por construir o seu destino auto destrutivo. Todos esses temas mostrados no livro também é projetado na canção "Dance With The Devil" por Immortal Technique.


A imagem abaixo mostra uma pessoa um quarto cheio de nada. Esta é uma representação direta de como Souza sentiu quando percebeu o buraco em sua mão. O que significa que ele se sentia livre de todas as suas responsabilidades e via o mundo de uma maneira diferente. Em outras palavras, ele estava fora para perceber seus desejos e ele que ele finalmente parou de se preocupar com o futuro. Além disso, o fato de que Souza nem sequer pensar em ir ao médico para consertar a mão, prova que ele nunca se preocupou com seu futuro, mesmo quando ele estava saudável. Este fluxo de pensamento de Souza descreve com precisão o cenário deste livro em que há pouco a nada cenários felizes, e como a vida é deprimente para os personagens. E, também é importante afirmar que este capítulo é um ponto de viragem importante para Souza porque ele finalmente confirma seu destino auto-destrutivo, porque ele escolhe desistir das suas responsabilidades.



https://www.youtube.com/watch?v=k8yKTuvRmPE

Image result for nothing

Tuesday, June 7, 2016

Better Safe Than Sorry

What was the challenge?

The main idea of this project was to use the physics concepts that we have learned in class to design and understand the safety mechanisms in cars. Such as, brakes, seat belts, air bags, frontal crumple zones or by simply using vehicle mass. To show our understanding of these concepts, we were told to build a safe car by incorporating these safety mechanisms, by using some of the materials provided (spaghetti, tape, cotton, clay, dough, aluminium foil, a passenger compartment, etc) and by following guidelines that prohibits you from using certain material in certain parts of the car. The problem that we were faced with here is that there would be a raw egg inside the car to act like a passenger. And when designing the car, students were only allowed to use one safety mechanism in their vehicle.The goal of this was to protect the egg from breaking after traveling down an approximately a ramp of 48 centimeters in altitude.


How did you choose to approach the challenge?

To deal with this challenge, my partner and I decided to create a frontal crumple zone, in other words a bumper, that will absorb the impact of the crash effectively,and stop the forces from impacting the egg itself. We did this by using certain amounts of materials such as cardboard, tape, plastic box as our passenger compartment, and scissors. We tried to design the car as simple as possible so that the mass of the car will be lighter, therefore the car won't be able to gain much speed while it speeds down the ramp.





Our design was like a spring inspired bumper as we folded the cardboard in order for it to look and act like  spring, so in the end, our design practically looked like a car with a gigantic spring for its bumper. The reason why we designed the bumper as a spring like shape was because we thought that as the impact of the force will start pressing the spring, the spring will shrink and start reducing the amount of force from the crash that will reach the egg as it takes a certain amount of force to pressurize the spring. Thus, our car was basically an egg and a plastic box with a huge spring in front of it. 


Here is our final design:



How did you test and evaluate your design?

To test and evaluate whether our design would be a successful in protecting the egg or not, we followed the procedures given to us. It told us to use a track that fit the car's wheels and to test the crash with a ramp with the altitude of 48 cms. For each trial, we timed how long it took the car to finally crash into the wall and how long the car traveled, in order to calculate its velocity. We also recorded if there was any harm done to the egg or not. Here is the following raw data we collected:

Car's mass: 186.2 g for the plastic box and material and 1000 g for the metal car. Therefore the total mass of the car was 1186.2 g.


Trial Number
Time (s)
Distance (m)
Success? (yes or no)
1
0.8
1.21
Yes
2
0.9
1.21
Yes
3
0.8
1.21
Yes


Trial
Speed (m/s)
1
1.21/0.8 = 1.51
2
1.21/0.9 = 1.31
3
1.21/0.8 = 1.51


From our results, we evaluated our design of the car to be fairly successful, as we had a 100% success rate in saving the egg from the crash. And as the egg did not break even once from the all the trials, we were so confident that we decided to test the car from a steeper angle to test if whether the procedure or materials that they have provided for us were actually valid for test like this. Here is a video below that will show you that the egg still didn't break even after we have tried the test from a steeper higher ramp.




In this trial, the egg again does not seem to break. But now, the real question that we have to start asking at this point is " Is it our design that is saving the egg or is the plastic box that we used strong enough to protect the egg?". After we have asked other groups about their results, almost of them said that their eggs didn't break. Therefore, I think that the passenger compartment of the car itself is enough to be able to protect the egg from cracking from a crash. So, something that I would want to change in our procedure is to make the car use a less sturdier passenger compartment because this would help conduct more valid tests as we would be able to test the full potential of our designs. Another suggestion that I want to make for the procedure is to lengthen the length of the track as the longer the track is, the more force and speed the car will be able to gain. In addition, they would supposedly be traveling at a higher speed, meaning a stronger collision that could potentially damage the egg if the design wasn't very well thought of. In conclusion, I believe that our design for our car was fairly successful, however as the passenger compartment of the car was actually protecting the egg, the effectiveness of our design couldn't be tested in a reliable way.  

Monday, April 18, 2016

Declarations of the rights of man vs the bill of rights

Personally, the "Declarations of the Rights of Man". Not only does the "Declarations of the Rights of Man" provide the rights to man, but it promotes equality as well. I feel like the "Declarations of the Rights of Man" is something that focuses more on the men instead of a certain group, since at first the Bill of Rights is something that targets the anti-federalists, in order for them to accept the constitution, but I feel that in the "Declarations of the Rights of Man" there is no catch, thus making it more reliable and solvable. The only problem is that the tyrant Robespierre trashed this rule and sought out to pertain his power, and so the freedom and equality thing did not work out in the end. Also I feel like the "Declarations of the Rights of Man" is more fit, since France was overgrowing a change of government and in the same time trying to fight a war, it was trying to take care of two babies at once, two problems, and it was not any easier to take care of creating a new government than to fight a war.

Friday, April 15, 2016

math blog

1. I input the winning team's score on L1 and the losing team's score on L2 and the Superbowl number on L3.



2.
The mean of the winning team is 30 points and the average score of the losing team is 16.
3.
The median of the loser's score is 17
and the first quartile is 10 and the third quartile is 21
the minimum value is 3
and the maximum value is 31


first quartile 23
third quartile 35
Min: 16

Med: 30.5

Max: 55



4.
std for the winners is 9.5
std for the losers is 6.7

this means that the loser's plot points are less spread out than the winner's

5.
There is no correlation between the scores. As the R value is 0.15 there is no correlation at all.

6. 
The r value if this linear equation is 0.15 which means that there is no correlation between the plotted points. But according to the equation 1.2+27= 28.2 therefore it is 28



Thursday, March 17, 2016

Socials blog

I think that the constitution allowed slavery to continue as they were afraid that the slaves might harm their society after being released and they were also worried about the loss of revenue. This causes the Constitution to be a wobbly start for a new country as it contradicts itself. As it states that all men are born equal, nevertheless they do not attempt on stopping slavery. I disagree with this decision as it is hard to believe that the Founding Fathers of America did not recognize slavery as a problem. Therefore I come to believe that they decided to ignore this problem because they were afraid of the negative consequences.

Thursday, March 3, 2016

Math Final Barbie Blog

In our final jump, the barbie doll was 3/2 foot away from the ground, therefore we failed to give our doll a thrilling experience. The reason why this happened is because our graphs weren't accurate, as we did not use a solid method of coming up with them and instead we guessed and checked our graphs. Moreover, it was a mistake to have chosen quadratic graphs to represent this situation as quadratic graphs have exponential properties but our rubber bands do not stretch infinitely. Furthermore, last time we plotted our trials/points in different equations, therefore there weren't enough trials per meter to make a mathematical graph.

So our group decided to redo our project and start from scratch.

Here is our data chart which was created by test jumping our barbie from various heights and finding out the amount elastics needed for that certain jump.

Here are some of our trial videos:



Height
Elastics used
1.75 m
11
1.92 m
14
2.60 m
18
3.25 m
20
4.17 m
31
5.20 m
37


Using this data, our group decided to use a computer program called geogebra to come up with a linear equation for the jumps. We decided to use a linear equation this time as we learned that quadratic equations didn't work as they included exponential properties and the rubber bands that we used for these jumps didn't. And another error that we made in the past was that the points that we got the the graph did not entirely represent a quadratic equation.

To get the equation we inserted this in our geogebra spreadsheet to plot the points.
The y axis represents the height of the jump and the x axis represents the amount of elastics needed for that jump.

Screen Shot 2016-03-03 at 4.18.01 PM.png

Here is the process on how we managed to find our equation:

1. Open the spreadsheet in geogebra, and then type in the x, y, and the points. (Warning, "X" and "Y" have to be in quotations so it is not identified as a variable.)2. Then, in the input box at the bottom, type in "cellrange[C2,C7]" as the points that I would be using to make the best-fit line starts from the C column in the spreadsheet, from the 2nd row to the 7th row.

3. Then click on the input box, type in "fitpoly[list1, 1]" as I need to make the best-fit line for list 1, the points of C2 - C7, and 1 because I needed a straight line.

Screen Shot 2016-03-03 at 7.09.39 PM.png

This is the equation that we came up with:

y = 0.13x+0.28

Now that I got this equation, I believe that if we had applied this equation for our final jump, we would have gotten a better result, giving the barbie a more thrilling experience.

To prove that this equation is the right equation, our group did another final jump which went successfully the barbie doll did not touch the ground by about 10 cm which is better than the final jump that we did before which had a gap of 3/2 feet.



According to our equation, for our barbie to jump 5.94 meters, the we should use 43 rubber bands. We
based our jump on this information and managed to get a much more thrilling jump by making the barbie not touch the ground by a couple of inches. In conclusion, if we had not used a quadratic equation in the first place and used a more mathematical way of getting an equation for this project, we would have been more successful overall. 

Reflection:

Overall, I believe that this project had a very positive effect on my learning as it has taught me how to use linear equations in real life, moreover it has also improved my problem solving skills by a lot as we had to deal with many problems while finishing this project. We faced problems such as, not being able to come up with a equation manually therefore we had to use programs such as geogebra to get a more accurate graph that serves our purpose in a better manner. I really want to thank my teacher Mr. Okness for giving me an opportunity to show my understanding in math in a real life situation which I never did before. 

Tuesday, February 23, 2016

Science reflection blog

I think that this project really helped me learn more about my personal interests. I was able to connect our food,nutrition and fitness unit to surviving in the wild. I think that by doing a project like this, will help students dig deeper into a topic, thus learning deeper contexts and to also learn more about what they are interested in. I also find that this types of projects will motivate students to learn more about a scientific topic and gain more interest in science. I really think that if we did another project like this for our next unit, I will be able to understand the deeper side of our unit.