Recently in science class we learnt about rays and reasearched them this is my reasearch on Ultraviolet Rays.
Sources of Ultraviolet Rays
The sources of ultra violet rays are the sun, Flourescence/Flourophore and ionizing radiation. The sun has powerful rays that seep in through the ozone layer through patches of areas that are not covered. There is a test called woods lamp where you are in a dark room and they shine an ultraviolet light to anywhere you want. This shows you the light in your skin that can not be seen by the human eye.
What is this used for?
Ultra violet Rays are used for many interesting experiences. First Food preservation. The Food is passed through a machine that produces ultra violet Light. The light Kills all the micro organisms there fore making the food Germ free. Second they use the rays in Fly Trappers. Since flies are attracted to this light they go towards it and once they get to the light ZAP. The fly is killed. This is very useful in Kitchens and on camping trips.
DID YOU KNOW
_did you Know quartz crystals reflect a tiny spectrum of Ultraviolet Rays?
_Did you know a black light or UV Light is a lamp that emits electromagnetic radiation.
http://www.biospherical.com/nsf/student/page3.html
http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Food-Preservation.topicArticleId-8524,articleId-8517.ht
http://www.cryptosporidiumblog.com/2006/03/articles/-cryptosporidium-watch/uv-rays-are-used-to-treat-water-kill-nasty-little-bugs/ml
Thursday, January 22, 2009
Flying Cars second edition
a new energy efficient flying car has just been invented. it was created in boston. this car has been made with many functions. first the plane function. this "roadable plane" can fly 500 miles straight on one gallon of gas, this invention uses unleaded fuel. you can fly of the runway and land in another in your own car. you just unfold the wings for take off and after landing you fold them. This is now among the other few flying car projects. a car that flies, who could have imagined it. almost like the Tv series The Jetsosns their car flies. Since the first Boeing 747 flight flying cars have been questioned. the possibility was very narrow until two bright "bostonians" came up with this new invention. this could be a leap forward for mankind. In the words of Neil Armstong "One small step for man, one giant leap for mankind"
Inauguration
As president Barrack Obama walked onto the podium to take the oath the crowd went wild. He looked at the millions of people then he swore an Oath on the same bible as Abraham Lincoln used when he was sworn in. Now our first African American president Barrack Obama has taken the white house by a storm. On his list on Tuesday the 20th 2009 he had a quiet breakfast with family. Followed by his swearing in and inaugural address. He then watched the parade through a bullet proof glass window. After that he and first lady Michelle Obama went to all 10 inaugural balls in Washington D.C. The music varied from slow dancing or hip hop. The president danced to all of them.
Barrack Obama walked down the blue carpet on the east steps of the capitol building about to become the 44th president people were filled with ecstasy. He took the podium and said “ I Barrack Hussein Obama do solemnly swear that I will faithfully execute the office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States." These were the historic words he said on the start of a great day. He then walked down Penn Ave spiting what the secret service and the government had told him to do, he walk to the white house. At one of the morning prayers that Obama undertook he learned that “In the time of crisis, good men must stand up.” I guess he was that good Man. This article tells us about the Jam packed day our new commander and chief had. That he would spite the C.I.A and walked down Penn Ave just so that he could see his supporters. This shows we are in for a long run With Barrack Obama.
Out of the 10 inaugural balls everyone said the best one was the one in the Neighborhood. Barrack and Michelle danced to a slow song together. Every one was saying that Michelle’s dress was drop dead gorgeous. She was described as “the ravishing first lady” President Obama was called “ the dapper president Obama.” Barrack and Michelle danced the night away making appearances at 10 different Balls. It was a hectic Night but they went to all ten and split time between them all. What this article is about is the Obama families perfect end to a day. The commander in chief and the first lady dancing was a sight most people will never forget.
I think that this was a very historical day. It was a wake up call for America. It is telling us to relive the american dream. Being at the inauguration the way people shouted and screamed for Obama was amazing. His speech was very captivating and it captured everything he is about. He then told us this “Let it be said by our children's children that when we were tested, we refused to let this journey end, that we did not turn back, nor did we falter; and with eyes fixed on the horizon and God's grace upon us, we carried forth that great gift of freedom and delivered it safely to future generations.” these words spoke to me and said that hey if he can do why can’t you.
Monday, January 5, 2009
The Ball Drop
5-4-3-2-1- HAPPY NEW YEAR it is the new year and the ball has dropped. we are now in 2009. what is the ball made of i heard it was significant this year but i don't know why. well it isa made of glass, the lights are LEDs and these light up at exactly 11:59:00. the lights are mad e colorful thanks to the water ford crystals the lights look colored. really they are 32,256 Philips Luxeon Rebel LEDS. first they take one layer and cover the wires. one color at a time. green then blue then red then yellow, all the colors are incorporated into the ball. the ball then is dropped doen a metal pole slowly, at, at least 1 mile per hour until it gets to the bottom activating the shutters that have connfeti and the clock strikes 12:00.
http://www.timessquarenyc.org/nye/nye_ball.html
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