I Make My Own Rules Essays - African-American Culture, Free Essays

I Make My Own Rules Essays - African-American Culture, Free Essays "I Make My Own Rules" LL Cool J's autobiography "I Make My Own Rules" is a very well written book. I liked the way he got into detail about his childhood. He had a very interesting childhood. The way he explains the good and the bad of his hip-hop life is also interesting. It is also very interesting how he tells how he went from a bad sinful child to a nice spiritual man. The way LL tells about his childhood is interesting. The way he tells about it is not that interesting, yet his childhood is very interesting. For instance in the story he tells about as a child how he tried to run away from his father Roscoe (his abusive step father), and got a very bad beating, He goes into detail about how Roscoe would beat him and neglect him. He also tells about how when he was older how Roscoes' abusive behavior rubbed off on him. He would beat kids up for no reason, just like Roscoe. The way he tells about this is scary and sad. I loved these parts of the story because they open your eyes to child abuse and show you that it does exist. The way he explains his hip-hop life is very interesting/funny. For example he tells about how his accountants would take money from him by telling him to take a cheaper deal and then charging him for a more expensive deal and pocketing the difference. Since he didn't finish his education he didn't know what to do therefore he just went along with what was going on. In the long run he looked back and figured out he lost more than 20,000 dollars. He also explains going on tour and some of the stuff they would do. "Sometimes my friends would put itching powder in my bed and look at scratching and bust up laughing (pg.140)" said LL. He said that on the whole the hip-hop life was the life for him, even after all the drama unfolded. As a beginner in the hip-hop industry he was a very vulnerable young man. He easily got caught up in the sex and money (he never did drugs because he never liked them). He would do all kind of things that many would not approve of. He would have many different women at one time, he would buy many frivolous things, and he would cheat on his wife (it was only one time for a week though). He also then explains how when he got older he completely turned his life around. He met a friend named Charles. He taught him how to communicate with the spiritual side of life. It was from there that he turned his life around, he went back to school, and he stayed faithful to his wife, and had three loving kids. "If said if it weren't for Charles my life would have ever been the same," said LL. The book was a very good way to get across the point that if you want to get in the hip hop industry you must really want to do well. I highly enjoyed the book. It was a very funny book at times and a very sad book at times. I would highly recommend this book to a lot of people.

Why the Water in a Nuclear Reactor Glows Blue

Why the Water in a Nuclear Reactor Glows Blue In science fiction movies, nuclear reactors and nuclear materials always glow. While movies use special effects, the glow is based on scientific fact. For example, the water surrounding nuclear reactors actually does glow bright blue! How does it work? Its due to the phenomenon called Cherenkov Radiation. Cherenkov Radiation Definition What is Cherenkov radiation? Essentially, its like a sonic boom, except with light instead of sound. Cherenkov radiation is defined as the electromagnetic radiation emitted when a charged particle moves through a dielectric medium faster than the velocity of light in the medium. The effect is also called Vavilov-Cherenkov radiation or Cerenkov radiation. Its named after Soviet physicist Pavel Alekseyevich Cherenkov, who received the 1958 Nobel Prize in Physics, together with Ilya Frank and Igor Tamm, for experimental confirmation of the effect. Cherenkov had first noticed the effect in 1934, when a bottle of water exposed to radiation glowed with blue light. Although not observed until the 20th century and not explained until Einstein proposed his theory of special relativity, Cherenkov radiation had been predicted by English polymath Oliver Heaviside as theoretically possible in 1888. How Cherenkov Radiation Works The speed of light in a vacuum in a constant (c), yet the speed at which light travels through a medium is less than c, so its possible for particles to travel through the medium faster than light, yet still slower than the speed of light. Usually, the particle in question is an electron. When an energetic electron passes through a dielectric medium, the electromagnetic field is disrupted and electrically polarized. The medium can only react so quickly, though, so there is a disturbance or coherent shockwave left in the wake of the particle. One interesting feature of Cherenkov radiation is that its mostly in the ultraviolet spectrum, not bright blue, yet it forms a continuous spectrum (unlike emission spectra, which have spectral peaks). Why Water in a Nuclear Reactor Is Blue As Cherenkov radiation passes through the water, the charged particles travel faster than light can through that medium. So, the light you see has a higher frequency (or shorter wavelength) than the usual wavelength. Because there is more light with a short wavelength, the light appears blue. But, why is there any light at all? Its because the fast-moving charged particle excites the electrons of the water molecules. These electrons absorb energy and release it as photons (light) as they return to equilibrium. Ordinarily, some of these photons would cancel each other out (destructive interference), so you wouldnt see a glow. But, when the particle travels faster than light can travel through the water, the shock wave produces constructive interference that you see as a glow. Use of Cherenkov Radiation Cherenkov radiation is good for more than just making your water glow blue in a nuclear lab. In a pool-type reactor, the amount of blue glow can be used to gauge the radioactivity of spent fuel rods. The radiation is used in particle physics experiments to help identify the nature of the particles being examined. It is used in medical imaging and to label and trace biological molecules to better understand chemical pathways. Cherenkov radiation is produced when cosmic rays and charged particles interact with the Earths atmosphere, so detectors are used to measure these phenomena, to detect neutrinos, and to study gamma-ray-emitting astronomical objects, such as supernova remnants. Fun Facts About Cherenkov Radiation Cherenkov radiation can occur in a vacuum, not just in a medium like water. In a vacuum, the phase velocity of a wave decreases, yet the charged particle velocity remains closer to (yet less than) the speed of light. This has a practical application, as it is used to produce high power microwaves.If relativistic charged particles strike the vitreous humor of the human eye, flashes of Cherenkov radiation may be seen. This can occur from exposure to cosmic rays or in a nuclear criticality accident.