CHRISTMAS

Christmas break is always the best time of the year. First off theres winterball, then christmas eve, christmas day, new years eve, and finally the New Years Day. So many things happen is such a short time period. There is so much laughter and smiles and giggles and joy. Presents being opened, egg nog and hot cocoa being drank, and fireworks being popped, and family coming together. So basically, i did no thinking of physics what so ever. The picture above was taken on Christmas Day at a christmas party with my moms family. The picture is of me and all of my first cousins, however i think a few were mising. The old person in the middle is my tutu with her dogs. I must say however, I am the best looking of them all! haha...Christmas for me was very enjoyable this year and a lot of fun and i look forward to a great 2009 Christmas!!! Happy Holidays everyone and a Happy New Year. Thanks Mr. K for a great 1st semester!!!

Crazy Reflection

On a rainy saturday afternoon, I decided to do my physics journal. I chose to do it on mirrors because my closet sliding doors are two big mirrors and the physics behind mirrors is amazing. Mirrors are objects that show a reflection. Usually light, the light from my room, reflects off the object and goes toward my eyes. Also, light travels in straight lines and will take the quickest path to get from point A to point B. In the picture, I am able to see a certain amount of other objects that are reflected as well because the angle of incidence from the object is the same as the angle of reflection, Law of Reflection. My brain will extrapolate backwards where the reflected ray(s) appears to have origianted from. Everything (the images) in a mirror are the same distance behind the mirror as the actual objects itself. So if I'm ten feet away from the mirror, then the reflected image is ten feet into or behind the mirror. Lastly, this mirror gives off specular reflection. Light rays are reflected from a smooth surface and light refelcts in one direction. And so, that is what mirrors are about!

InkJets...

This past weekend was superb! We won the DII HHSAA State Football Championship!!! Maybe it wasn't the longest that I would have liked but on Friday night, all the confetti fell from the skies!!! So anyways, this was a fun, physics filled weekend of color. I noticed things in color realizing that it all pertains to visible light and how it works. It pertains to how colors are made, either addition or subtraction. In this episode of physics nine journal, I shall introduce to you the magic of color of ink jet printers. Did you know that ink jet printers can create thousands and thousands of colors with only three colors, magenta, cyan, and yellow and then of course black which is the absence of color? Its true! And i really didn't realize this even though i always have to change the ink cartridges. The three colors are the 3 primary colors of pigment which in actuality would be produced when the 3 primary colors of light mix with each other. However the lights are different from paints and dyes and what not. Just for example, green and blue light will create cyan light. But cyan and magenta paint will create a blue color. So in an ink jet, colors are made by color by subtraction where 3 pigment colors are mixed and the size of the dot on the paper is manipulated. Inkjet printers deposit various combinations of magenta, cyan, and yellow, and black inks which can create amazing pictures. If you were to examine a picture in a book with a magnifying glass, you can see how the overlapping dots of these colors give the appearance of many colors.