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When The Morning Rises

Posted by Kamilah Hudson in Physics - Echols on Friday, June 8, 2012 at 9:52 am

When the Morning Rises
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Human Teleportation 10 percent project amillatt

Posted by Amanda Millatt in Physics - Echols on Friday, June 8, 2012 at 9:32 am

I decided to learn the physics behind human teleportation. 

Click here
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10% Project - Tenzin Ngawang

Posted by Tenzin Ngawang in Physics - Echols on Friday, June 8, 2012 at 9:24 am

Physics of Running. 
Physics10%_TenzinNgawang
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10% Project

Posted by Paige Wayman in Physics - Echols on Friday, June 8, 2012 at 9:15 am

I did my 10% project on thermal energy, which is just another term for heat. My project thoroughly explains the meaning of the word “heat,” and shows examples of how it is present in our everyday lives.


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Ruben Burenstein 10% Project

Posted by Ruben Burenstein in Physics - Echols on Friday, June 8, 2012 at 9:13 am

My project is about the history of scientific theories. This means that it's about what scientists believed as true over time. The main theories that I'm focusing on are ones there were held to be true, but then discovered to be false. Two very important theories were geocentric theory, and spontaneous generation. I explained how each of these, and 3 more theories were proven false, and how this changed the world. I did this project because I think it's an interesting topic, and think it has to be considered in the future. At the end of the presentation I talk about how this could relate to modern day, and everything that we have learned could be proven wrong.
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Tags: ruben, burenstein, Graduation 2010
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10% Project - Physics of Dance

Posted by Jessica Hinton in Physics - Echols on Friday, June 8, 2012 at 8:33 am

For the 10% project, we had the opportunity to choose a topic of our choice, and then we would present our research. For the project, I decided to focus on the ‘Physics of Dance’. Being that I have a personal connection to dance, it was interesting to learn about how there is physics involved in dance. I never really thought about it until we started the project, and now I have a whole new understanding for it. 

I compiled a little document about some of the important things I learned regarding physics and dance. In the document, you'll learn about balance, rotations, and jumps. Those are some of the main topics I read about, and I think those are a good start for learning. 




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10% project

Posted by Daniel Wirt in Physics - Echols on Friday, June 8, 2012 at 8:28 am

​I did my project on health and nutrition. It is kind of a way to inform the general public of what they are eating when they buy their favorite cereals or how diet soda isn't actually good for you. I talk about the benefits of whey protein and eating fruits and vegetables. 


Screen Shot 2012-06-08 at 8.26.17 AM

Screen Shot 2012-06-08 at 8.26.32 AM
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10% Benchmark: Kimberly Cayamcela

Posted by Kimberly Cayamcela in Physics - Echols on Friday, June 8, 2012 at 8:23 am

For my 10% project I created a lesson plan for a teacher of the fourth grade, but in this case I made it so I would be presenting.

Click here to view my presentation!
Click here to view my notes! (Includes a made up quiz! Test your skills!) 

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Physics of Star Wars - Ryan Harris

Posted by Ryan Harris in Physics - Echols on Friday, June 8, 2012 at 8:11 am

​My 10% project topic was the physics of Star Wars and more specifically The Force and Force Push/Pull. The thing that really interested was how The Force relates to gravitational fields. The way I interpreted it was that Jedi (those most connected to The Force), have the ability to manipulate gravitational fields to their own bidding. This allows things like levitation and the ability known as Force Push/Pull. This is all allowed by the will on the Midi-Chlorians who are the physical representation of The Force. 

Midibp
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10% Project qmalik

Posted by Qaswa Malik in Physics - Echols on Friday, June 8, 2012 at 7:24 am

I wrote a lesson about heat and heart attacks. I learned different symptoms and causes of heart attacks and how it works. Below is the lesson.

The Human Heart

Your heart is a muscular organ that pumps blood to your body. Your heart is at the center of your circulatory system. This system consists of a network of blood vessels, such as arteries, veins, and capillaries. These blood vessels carry blood to and from all areas of your body.

 

An electrical system controls your heart and uses electrical signals to contract the heart's walls. When the walls contract, blood is pumped into your circulatory system. Your heart is vital to your health and nearly everything that goes on in your body. Without the heart's pumping action, blood can't move throughout your body.

 

Your blood carries the oxygen and nutrients that your organs need to work well. Blood also carries carbon dioxide (a waste product) to your lungs so you can breathe it out.

 

A healthy heart supplies your body with the right amount of blood at the rate needed to work well. If disease or injury weakens your heart, your body's organs won't receive enough blood to work normally.

The heart is one of the most important organs in the entire human body. It is really nothing more than a pump, composed of muscle which pumps blood throughout the body, beating approximately 72 times per minute of our lives. The heart pumps the blood, which carries all the vital materials which help our bodies function and removes the waste products that we do not need. For example, the brain requires oxygen and glucose, which, if not received continuously, will cause it to loose consciousness.

The heart is essentially a muscle(a little larger than the fist). Like any other muscle in the human body, it contracts and expands. Unlike skeletal muscles, however, the heart works on the "All -or-Nothing Law". That is, each time the heart contracts it does so with all its force. In skeletal muscles, the principle of "gradation" is present. The pumping of the heart is called the Cardiac Cycle, which occurs about 72 times per minute. This means that each cycle lasts about eight-tenths of a second. During this cycle the entire heart actually rests for about four-tenths of a second.

The walls of the heart are made up of three layers, while the cavity is divided into four parts. There are two upper chambers, called the right and left atria, and two lower chambers, called the right and left ventricles. The Right Atrium, as it is called, receives blood from the upper and lower body through the superior vena cava and the inferior vena cava, respectively, and from the heart muscle itself through the coronary sinus. The right atrium is the larger of the two atria, having very thin walls. The right atrium opens into the right ventricle through the right atrioventicular valve(tricuspid), which only allows the blood to flow from the atria into the ventricle, but not in the reverse direction. The right ventricle pumps the blood to the lungs to be reoxygenated. The left atrium receives blood from the lungs via the four pulmonary veins. It is smaller than the right atrium, but has thicker walls. The valve between the left atrium and the left ventricle, the left atrioventicular valve(bicuspid), is smaller than the tricuspid. It opens into the left ventricle and again is a one way valve. The left ventricle pumps the blood throughout the body. It is the Aorta, the largest artery in the body, which originates from the left ventricle.

 

 

The Heart works as a pump moving blood around in our bodies to nourish every cell. Used blood, that is blood that has already been to the cells and has given up its nutrients to them, is drawn from the body by the right half of the heart, and then sent to the lungs to be reoxygenated. Blood that has been reoxygenated by the lungs is drawn into the left side of the heart and then pumped into the blood stream. It is the atria that draw the blood from the lungs and body, and the ventricles that pump it to the lungs and body. The output of each ventricle per beat is about 70 ml, or about 2 tablespoons. In a trained athlete this amount is about double. With the average heart rate of 72 beats per minute the heart will pump about 5 litres per ventricle, or about 10 litres total per minute. This is called the cardiac output. In a trained athlete the total cardiac output is about 20 litres. If we multiply the normal, non-athlete output by the average age of 70 years, we see that the cardiac output of the average human heart over a life time would be about 1 million litres, or about 250,000 gallons(US).

Causes

Most heart attacks are caused by a blood clot that blocks one of the coronary arteries. The coronary arteries bring blood and oxygen to the heart. If the blood flow is blocked, the heart is starved of oxygen and heart cells die. A plaque can build up in the walls of your coronary arteries. This plaque is made up of cholesterol and other cells. A heart attack can occur as a result of plaque buildup. The plaque can develop cracks or tears. Blood platelets stick to these tears and form a blood clot. A heart attack can occur if this blood clot completely blocks oxygen-rich blood from flowing to the heart. This is the most common cause of heart attacks. The slow buildup of plaque may almost block one of your coronary arteries. A heart attack may occur if not enough oxygen-rich blood can flow through this blockage. This is more likely to happen when your body is stressed (for example, by a serious illness). The cause of heart attacks is not always known.

 

Heart attacks may occur:

 When you are resting or asleep

After a sudden increase in physical activity

When you are active outside in cold weather

After sudden, severe emotional or physical stress, including an illness

 

Symptoms

The pain can be severe or mild. It can feel like:

A tight band around the chest

Bad indigestion

Something heavy sitting on your chest

Squeezing or heavy pressure

The pain usually lasts longer than 20 minutes. Rest and a medicine called nitroglycerin may not completely relieve the pain of a heart attack. Symptoms may also go away and come back.

 

Other symptoms of a heart attack include:

 Anxiety

Cough

Fainting

Light-headedness, dizziness

Nausea or vomiting

Shortness of breath

Sweating

Some people (the elderly, people with diabetes, and women) may have little or no chest pain. Or, they may have unusual symptoms (shortness of breath, fatigue, and weakness). A "silent heart attack" is a heart attack with no symptoms.

 

Citations:

http://www.webmd.com/heart-disease/guide/heart-disease-symptoms

http://www.medicalnewstoday.com/articles/151444.php

 

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2011-12

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  • Rosalind Echols
Science Leadership Academy @ Center City · Location: 1482 Green St · Shipping: 550 N. Broad St Suite 202 · Philadelphia, PA 19130 · (215) 400-7830 (phone)
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