Wow, I can not believe there are more than one type of reflection. Not only can a reflecting device be seen in a bathroom, or a car, but also when reading a book, if you shine a light, the book becomes a reflector, but not the same as a mirror. When I started reading my book, I realized that diffuse reflection was ocuring because the book is not made up of an entirely smooth surface, but instead many small fibers. This causes the light rays to bounce off of the book and head in many different angles. I never knew that physics could even be found in a house on a rainy day when playing sports is not an option. When in class, Mr. Kohara turned over the mirror and shined the laser at it, and everyone was able to see the light as the laser bounced of the back of the mirror and headed toward everyone. That was the first thing I thought back to when I began to see the light on my book.
Sunday, December 14, 2008
Thursday, December 11, 2008
Specular Reflection
I know this is probably dangerous, but I was driving about 47 miles per hour out of a side street when I came up to what look like something Physics related. I immediately slammed on my new, anti-lock, breaks and came to a stop. I pulled out my camera and took a picture. I never knew that Physics could pop up just like that right infront of someone. I took the picture and am amazed how well it turned out. You can see the reflection in the water of the light pole, the electrical wires, and the sky. The pole, electrical lines, and sky hit the water and reflect back to your eye making it look like the images are actually underground. To be correct, the images appear as far away from the puddle as your brain makes them appear underground. Physics is trippy! I'm glad I just repaired my breaks or I would have not been able to take in the amazing Physics right infront of me.
Sunday, November 23, 2008
Shades and golf in the farm lands!
What a great summer! Not only did I get to play golf, but here is proof that there is more to just farms then animals and crops. I was amazed to see how close this golf course was to being in the farm. As I reflect back on what I just said, it actually has no relation at all to what this journal is supposed to be about. The real, underlying reason for this journal is to talk about my sunglasses. When I'm on the golf course, I try to use sunglasses a lot because it keeps the glare out of my eyes. But what I realize now is that dark sunglasses like mine really attract the heat. When I play in tournaments, I often find out the heat because there is fog on my shades. But when I wear regular glasses, there is not really a sense of that kind of heat. When the infared light hits the dark glasses, the heat and light get absorbed by the glasses making it hot. But without the sunglass' tint, I would see so much glare coming from my metal golf clubs. Sunglasses are great, even though they can actually be hotter than regular sunglasses.
Friday, November 21, 2008
I broke my bro's guitar!
How amazing! This morning I woke up and accidentally kicked my brothers guitar. He is gonna be mad, but I will use this as a learning experience. I've never felt so close to an insrtument before, not including the drums. So here was my chance! I gained consience and looked at the string I broke. But then I remembered in physics how we spoke about the sound of an electric guitar. It looks simple, but I remember that the sound doesn't just filter into a chord which goes to the amplifier, the sound is actually from magnets. I looked at the guitar up close and was amazed to see the small round magnets under the bottom of the strings. When a string is plucked, the string vibrates making a sound and, because they are metal, moves the magnet. This results in a sound which people can hear when the guitar is properly plugged into an amplifier. I want to say sorry to my brother, but at the same time, I want to thank him for increasing my knowledge of physics in the world!
Tuesday, November 4, 2008
Evaluation
Wow one quarter is over and I'm still enthused with Concepts! This course is a lot of fun, with different activities and observations which we get to see through labs and videos. Watching "How it's made" is a great way to see exactly what we do in class and learn about because it's fun to learn about how things in our world really work. Magnets, static electricity, electricity, and sound waves are all things that I see in my everyday life. It is great to know how they work. My goals are to learn the basics as well and obtain a B or better throughout the entire year, showing I understand what I am learning. I feel that my effort has been great as I turn in my assignments on time and try my best to learn the most information possible during the class. It would be great not only to learn the facts about Physics to everyday life but also to be able to point them out and understand how they are formed and keep working.
Sunday, November 2, 2008
Beav Mobile!
Wow...Look at that Beav Mobile! I went to visit Oregon State University, and decided to go to their home golf course. Instead of stopping there, I amazingly saw the OSU golf team's golf cart so I decided to steal it. SHHHH don't tell! It was amazing because that little cart could speed up to about 35 mph. But when my mom took the wheel, I told her "Mom, let me stand on the road and you drive by holding the horn, because I love physics and want to see if something works." She replied by saying, "Okay." So the test started, and I stood in front of my Beav Mobile. My mom started the cart and pushed the horn and the noise was honestly annoying, but I went with it. As the cart passed, the sound got quieter as the sound waves were heading in the opposite direction and I simply could not hear them as clear. After the astounding experiment, I told my mom what I found happened and she said that Physics are everywhere. Here ends the great Beav Mobile sound test!
Saturday, October 18, 2008
Waves in Hawaii Kai
Good thing I'm not afraid of heights! When I went up to the top of Kamehame ridge, above Hawaii Kai, I was amazed that there was phyiscs just over the edge. I looked down at the ocean and was amazed to find that small waves were rolling in and turning around the islands you can see. It is weird to think what possibly could have caused the vibrations in the water. Perhaps there was a ship way out at see which was creating waves, and they turned into what we see in the picture. Or possibly there was a earthquake deep in the ocean and created vibrations which made waves. But that isn't the point, the point in this picture is that waves are rolling in which show a transverse wave as whatever caused the wave, was in a different direction of movement the up and down flow of the wave. Physics is all around us, now I understand!!!
Sunday, October 5, 2008
Summasound waves!
In this image, Summasounds is playing a concert! This image is great to show how sound is produced. If it is possible to see, behind Pablo, there are two amps on top of each other. Also, there is an amp behind Vlad, infront of the drums. These amps are the reason sound is possible to hear throughout a venue like Pipeline Cafe. When a string is plucked, the vibration causes sound waves which we hear through the amp. The cables which connect the guitars to the amps make the sound waves travel to the amps which cause a louder sound than we would hear without the amps. In a concert like ours, there are mics for different instruments, that connect to amps all over the concert hall. For instance, there are mics by the drums I am playing on, in order to produce the volume of sound similar to the guitars, the base, and the piano. Without amps, the sound we would hear at concerts would not be very loud and equal for each instrument.
Monday, September 22, 2008
Conductors and insulator
In golf, clubs are used to smash the golf ball from place to place. In this photo, I have a club in my hands, which can show to be both a conductor and an insulator. It is tough to see the insulator part of the club in this picture. If you can find the part of the club where my hands are holding, behind my head, it is called the grip. The grip is made of rubber which is an insulator as it does not allow electrons to move throughout the club. The conductor is the metal part of the club, which includes the club head, which is the round shaped part of the club, as well as the shaft which connects the grip to the club head. These are conductors as they are both made of metal, which allows electrons to move throughout the club allowing it to heat up. It is cool to think that one object, such as a golf club, has both an insulator and a conductor.
Monday, September 8, 2008
David Fink Physics Journal #1
In this image, my brother and I are standing in Oregon on a golf course. I was golfing that day and my mom took a picture on the third hole showing that the wind moves the flag. The golf course was very windy which is amazing the picture came out with the flag, as sometimes the flag will be moving so fast it would be too blury to see the details. As wind blows, different types of waves. But in this image, transverse waves are blowing the flag making it wave. The reason it is called transverse is because the flag is blowing in the same direction the wind is blowing. This is how it relates to physics, as the flag clearly shows that it is moving with the side to side or left to right wind. If the flag was waving up and down, the term of the waves would be longitudinal.
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