Logbook+02.04-02.08


 * 02/04/08 Monday**

Today, I read a book, "A Tour Of The Subatomic Zoo" and I will keep reading my book at home as well. When I am done with reading that book at home, I will summurize what i have read and learned and put them on wikispace tonight. As I describe this book, it shows the ideas, terminology, and techniques of high-energy physics. Views of matter from the atom down to the quark are discussed historically, in language that is easy to readers who don't know physics in their background. The author has also added a list of Web sites where the readers can find more information on particle physics.


 * __ Chapter 1 __**

First, Chapter 1. I saw a big printed outline, Nuclear and Particle and Electron, Proton and Neutron properties. So I read in the book and got some light information about what they are. Then, I researched for more deep information through internet.

[kg] || 9.1093897x10-31 || 1.6726231x10-27 || 1.6749286x10-27 || [kg/mol] || 5.4857990x10-7 || 1.0072765x10-3 || 1.0086649x10-3 || [C] || -1.602177x10-19 || +1.602177x10-19 || 0.0 || [C/kg] || -1.7588196x1011 || 9.5788309x107 || 0.0 || [m] || less than 10-16 || 8x10-16 || 8x10-16 || number || 1/2 || 1/2 || 1/2 || [J/T] || 928.477x10-26 || 1.41061x10-26 || 0.966237x10-26 || [m] || 2.42631x10-12 || 1.32141x10-15 || 1.31959x10-15 ||
 * || **Electron** || **Proton** || **Neutron** ||
 * Rest mass
 * Molar mass
 * Charge
 * Specific Charge
 * Radius
 * Spin quantum
 * Magnetic moment
 * Compton wavelength
 * Quark composition || - || uud || ddu ||
 * 02/05/08 Tuesday

__ Chapter 1 __** In Chapter 1, there is Rutherford's experiment. I read the book, but I wanted to see the pictures that shows how rutherford's experiment works. http://library.thinkquest.org/19662/low/eng/exp-rutherford.html I found how Rutherford's experiment has began and been created as well. Ernest Rutheford has found this experiments and made the name of experiment with his last name. In the year 1898 Thomson created the idea of atom as the positive charged ball in which there are negative charges placed - the "plum cake" model. So summing up the whole atom were to be neutral.  In the years 1909-1911 [|Ernest Rutheford]and his students - Hans Geiger (1882-1945) and Ernest Marsden conducted some experiments to search the problem of alpha particles scattering by the thin gold-leaf. Rutheford knew that the particles contain the 2e charge. The experiment caused the creation of the new model of atom - // the "planetary" model //. Rutheford suggested to hit the gold-leaf with fast alpha particles from the source 214Po. (The source R was in the lead lining F). The particles felt from the source on the gold-leaf E and were observed by the microscope M. The whole experiment was in the metal lining A and was covered with the glass plate P. The instrument was attached to the footing B. The gold leaf was about 5*10-7 meter thick. The scientist knew that reckoning the scattering angle could say much about the structure of atoms of the gold-leaf. Here is a easy and visual picture.


 * 02/06/08 Wednesday**

Today, I have read about the plum pudding model of atom.The plum pudding model of the atom was proposed by [|J. J. Thomson], who discovered the electron in 1897. The plum pudding model was proposed in 1904 before the discovery of the atomic nucleus. In this model, the atom is composed of electrons (which Thomson still called "corpuscles," though G.J. Stoney had proposed that atoms of electricity be called //electrons// in 1894), surrounded by a soup of positive charge to balance the electron's negative charge, like negatively-charged "plums" surrounded by positively-charged "pudding". J.J Thomson is the one of the most famous scientist in chemistry. So, I linked to the Wikipidia, J.J Thomson to see description of his life. http://en.wikipedia.org/wiki/Plum_pudding_model </span
 * __Chapter 1__**

Today, I am going to finish and rap the **__chapter 1.__** First what I did today is summarizing Chapter 1 totally!!! Chapter 1- the model of the aton: a dense nucleus containing most of the mass and all of the positive charge, with electrons somewhere outside the nucleus. - The model of the nucleus: protons and neutrons, with protons having positive electric charge and neutrons having none. - The discovery of the neutron - Conservation laws of charge, Momentum, and energy.
 * 02/07/08 Thursday**

And I have skimmed through Chapter 2 and research about Strong, Weak, electromagnetic, and gravitational Forces which are all involved in fundamental force. Here is comparison and description of these four forces.
 * __Chapter 2__**


 * __Fundamental Force__**

http://hyperphysics.phy-astr.gsu.edu/hbase/forces/funfor.html


 * 02/08/08 Friday**

Today, I read chapter 3, and made some big outline. -Antimatter - Positron - Properties of Antimatter In particle physics and quantum chemistry, **antimatter** is the extension of the concept of the antiparticle to matter, whereby antimatter is composed of antiparticles in the same way that normal matter is composed of particles. The **positron** is the antiparticle or the [|antimatter] counterpart of the electron. The positron has an electric charge of +1, a spin of 1/2, and the same mass as an electron. The **antiproton** (, pronounced //p-bar//) is the antiparticle of the proton. Antiprotons are stable, but they are typically short-lived since any collision with a proton will cause both particles to be annihilated in a burst of energy. The ** antineutron ** is the antiparticle of the neutron. It was discovered by Bruce Cork in 1956, a year after the antiproton was discovered. An antineutron has the same mass as a neutron, and no net electric charge.