Write-away Friday

  1. What tasks have you completed recently? 

This week In Gardner’s’ Chemistry class and Anatomy and Physiology I worked on labs such as the conservation of Mass Lab, The Small-Scale 6 Chemical Names and Formulas lab, and A Tissue lab. I also did a glog about the history of the Atom. As well as I came in during lunch to do a retake for the first quiz in anatomy and physiology over the human body. Along with this, I think i have become quite sufficient in using my knowledge of the names of the parts of the human body in absurd day to day context to make things funny. Such as today, Devin tried to draw a star on my elbow with her pen. Instead of saying “why are you drawing on my elbow?”, I said “What are you doing, drawing on my Olecranal?” In this way, I am forced to think about the names day to day by using them constantly in my speech, but the language is so complex compared to regular speech and therefore it is quite funny  in context. So I have found that I also have been able to successful study constantly without needing to actually “study”.

 2. What have you learned recently? 

Oh man!! I have learned a ton this week. I have learned how to write a chemical equation by using anions and cations. I now know how name a poly-atomic ion (but I still need to use my chart). I am also getting better at going back and forth between names and formulas. I have learned better what types of Epithelium and Connective tissue there are, and I am starting to understand how their form correlates to there function. Also i have I have learned how to manage my time a little bit better. I have learned to find time to do a little here and a little there.  And I have learned that when you have a lot on your plate, or you feel defeated, that is the worst time to give up. I learned that in ap U.S. history by reading common sense by Thomas Paine and comparing my life to the Revolution in overcoming a hard task that seems greater than you and how rewarding it will be if I work hard.

  3. What are you planning on doing next?

I plan on memorizing connective and epithelial tissues as well as their form and function. I also plan on memorizing  the equations of cations and anions, So that I can be ready for next week and the future classes I take. 

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

http://faculty.southwest.tn.edu/rburkett/A&P1%20Tissues.htm

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Smaller Than an Atom

In school we are taught that atoms are made up of protons, neutrons, and electrons. We know that Protons and Neutrons reside in the Nucleus of the atom. That Protons have a Positive Charge, and Neutrons have no charge or in other words are neutral. We also learn that the negatively charged particles called electrons, surround the nucleus in the area called the electron cloud.

Although all these things are common knowledge,  What evidence do we have to even support the idea of Atoms? In April of 1905 Albert Einstein looked at particles in the air and in water. He noticed that they moved around in a very odd and random way, unless the particles were composed of smaller things such as molecules and atoms.  This motion was termed Brownian Motion. Einstein concluded that the mathematical description of Brownian motion is evidence for the an atoms existence. He also was able to determine about how big atoms are based on how much the Brownian particles moved.

Now, based on Brownian Motion we have determined that atoms are in fact real.  But how are atoms broken down? What keeps those things together to form the atom? There are two forces that keep a atom together Electromagnetic Force and Strong Force. The first force is Electromagnetic Force. If you have ever played with magnets, then you know that opposite sides pull together, and the same sides, no matter how hard you push, won’s stay together. 

It is the same principle in the atom. The Protons and the Electrons are opposites therefore they hold each other together.  But when you get a proton and a proton together in the nucleus then they tend to push away from each other. To stop this from happening there is the Strong Force which is even more powerful than the electromagnetic Force. This force is only possible with the addition of Neutrons to the nucleus.

If you wanted to Break up an atom there are multiple steps that could accomplish this.

1.  Get rid of the Electrons. One way to accomplish this is by shining a light on the atom. The photon that makes up light hits the electrons and causes them to leave the atom.

2. When left with the Nucleus, the concept to break it up is the same. The only difference is the strong force is more powerful and will require more energy than that in visible light.

Using these principles we have discovered when protons and neutrons  are hit with an incredibly strong force that they break into quarks which are also held together using the strong force.  From science we have learned that there are atoms. Atoms are made up of protons, neutrons, and electrons. Protons and Electrons are made up of quarks. Next: What are quarks made of? Only time will tell.

http://technoscience.global2.vic.edu.au/2012/02/03/welcome-back-year-9-science-2012/

http://jimmyakin.com/2012/05/brownian-motion-explained.html

http://www.swe.org/iac/lp/magnets_03.html

http://www.scientificamerican.com/article.cfm?id=how-are-elements-broken-d

http://www.youtube.com/watch?v=nrUBPO6zZ40&list=FLD_qtoYY3ZEhrDetUPfjJog

One thing I couldn’t get into is how we know there are protons, electrons, and neutrons. If you are interested in finding out go to:http://www.youtube.com/watch?v=07yDiELe83Y

 

Old And New Materials: Samurai Sword and Silk.

Although the modern day wonder of the Silk and the ancient art of the Samurai Sword seem very different, they have a lot more in common than you think. With these two materials, the possibilities of these amazing products have been discovered using their very distinct and unique physical and chemical properties. The Samurai Sword has gone through many critics to make it one of the worlds most fascinating instruments. From a video on the Nova site on “Secrets of the Samurai Sword.” It tells of the secrets to making a Samurai Sword, and although the Japanese may not have been able to see to the microscopic level, they were able to use techniques that got the best quality’s out of iron and carbon (steel) to make a durable, strong sword. They realized that a sword must me malleable so that it wont break on contact, but they also realized that in order to be a good sword it had to be strong. The way they accomplished this is they added less carbon to the inner sword to make it malleable. This made it so that the inner blade would absorb any hit and make the blade less likely to shatter. Than the outside had more carbon which made the blade hard. In a like manner silk has been modified, using later technology and physical properties, to be used to it’s fullest potential.

Image

 

http://www.martial-art-potential.com/samurai-sword.html

http://www.milartsilk.com/?page_id=64

In the TED video by Flo Omenetto, he explains the some qualities of silk. Silk can dissolve, but it also can be stable for years,  it’s edible, and it can be implanted in the human body. Using silk they were able to make many things from cups, to medicine holders, and even bones, all because they utilized the properties of silk.

Therefore, it is clear that properties when utilized in Chemistry and in the innovation process can prove very vital to making things fulfill their highest potential and in that way we see that the commonality between this modern day wonder and the ancient art.