To find out more on Lupus and what Sharon is doing, you can visit her blog at:
Sunday, March 22, 2009
Interview
I had to interview one of my peers and find out what they wanted to do for their STEM project. Sharon King is one of my 22 STEM classmates. While talking with Sharon, I learned that she is interested in diseases. She would like to do her project on Lupus, a disease that has to do with your immune system attacking your body. Sharon is interested in Lupus because some of her family friends has it and it sounded interesting. There are 4 types of Lupus. They are Systemic Lupus Erythematosus, Discoid Lupus Erythematosus, Neonatal Lupus, & Drug induced Lupus Erythematosus. Sharon wants to study the effects that Lupus has on your body. She also wants to discover its symptoms, how it is obtained, the effects that it has on everyday lives, as well as a possible treatment. Sharon plans to complete her project by doing lots of research and possibly experimenting.
To find out more on Lupus and what Sharon is doing, you can visit her blog at:
To find out more on Lupus and what Sharon is doing, you can visit her blog at:
THE PLANT CELL
I had to create a powerpoint presentation of either a plant cell or animal cell, labeling all the organelles in that specific cell and real-world analogies for each organelle. I chose to make one on a plant cell and focus the analogies around farming.
Below are my slides on the plant cell.
Below are my slides on the plant cell.
* If close-up is needed, please click on the slide*
Wednesday, March 18, 2009
Alternating & Direct Currents
I have been notified that when I talked about Nikola Tesla, I was not clear on the difference between AC (alternating currents) & DC (direct- current) electricity.
AC current is a specific type of electric current in which the direction of the current's flow is reversed, or alternated, regularly. Direct current is no different electrically from alternating current except for the fact that it flows in the same direction at all times.
AC is like doing "line jumping" exercises; going back and forth really fast
DC is like running a lap around a gym; go down on one side, then come back on the other
KEY:
* - electrons
<> - direction the electrons are moving
l - pole
__ - wire
Hopefully, my explanation and images cleared up any questions :)
My STEM Project
I am in the STEM program at my school and one of the requirements is that my peers and I each create a project that we will carry with us, and gradually add onto over our 4-year high school education.
My project will be based around architecture and the mathematics and technology that go along with it. Maybe like how houses are specially structured in a safe way that will be protective and structurally sound. I will post more as I go deeper in.
My project will be based around architecture and the mathematics and technology that go along with it. Maybe like how houses are specially structured in a safe way that will be protective and structurally sound. I will post more as I go deeper in.
Monday, March 16, 2009
Nikola Tesla
One night, I was watching the History channel and it was talking about electricity and some guy named Nikola Tesla, which at that point, I had no idea who he was. I'm not "fascinated" with electricity but the facts on the show were intriguing.
When thinking back to the inventions of electrical currents, the name Nikola Tesla is not usually mentioned. Tesla was an extremely bright person. He invented many things, including the commonly used AC (alternating currents) Electricity. His AC electricity was more powerful than Edison's DC (direct-current) electricity. Tesla's version was used at the World Columbian Exposition at Chicago in 1893 by George Westinghouse.
I know that this does not seem like such a big deal but belive me, it is.
When Tesla came to the United States in 1884, he went to Thomas Edison with a letter from Charles Batchelor saying “I know two great men, one is you and the other is this young man." I had also learned that Edison had offered Tesla a large sum of money for building something, and when Tesla did, Edison said something to point of , "Do you not understand American humor."
One big question that you may be thinking is : What is the difference between AC and DC electricity?
Well... DC is electricity that is always moving in one direction. It will move from one area and then back to where it started. It can't be used for long distances because a tower would have to be placed about every 2 miles and it would be a real hassle.
AC electricity is constantly changing direction. It can change about 50 or 60 times per second. It moves a whole lot faster and can move a whole lot farther.
Tesla also had even greater plans. One plan was for a wireless broadcasting tower. It was funded by $150,000 from financier J. Pierpont Morgan. Due to Morgan stopping his funding, Tesla's tower was never finished and torn down. Tesla died on January 7th, 1943. His ideas are still on paper and kept securely in Siberia. He was a genius and, at the time of his death, had over 700 patents.
Monday, February 9, 2009
Questionable Math Problem
<-- that is a diagram explaining how I came to my conclusion.
Question:
The top of the Leaning Tower of Piza is 55.9 meters above the ground. It was leaning about 5.2 meters off-center in 1997. Approximate the slope of the tower.
qqqqqqqqAnswer:
qqqqqqqqqqPoints: (0,0) & (5.2, 55.9) qqqq
qqqqqqqqqqTo find slope using 2 points:
qqqqqqqqqqqq Y2-Y1
qqqqqqqqqqqqqqqq -------------
qqqqqqqqqqqq X2-X1
qqqq55.9-0 jjjj55.9
qq ------------- = ---------- = 10.75
qqqq5.2-0 jjjjjjj5.2
qqqqqqqqqqqqqqqThe slope is 10.75
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