Snoop Dog, Baby

Snoop Dog, Baby. It's a good song by Reel Big Fish. Crazy game last night. Umlauft is so beast. It felt like everything came on one day. There was kokua festival, the UH game, my brother's birthday, and our vball game against punahou. I really don't know what I'm gonna write about, but hopefully i'll find something by the end of this blog. I'm listening to some pepper right now. I wish I couldve gone to their concert on friday at UH when they played with tribal seeds. I'ts a nice day today. nice and sunny. Maybe I'll go play some tennis with my brother. Oh, I can't wait till summer. That reminds me. I get to fly to new york to see my sister's graduation. There, I got something to talk about. The physics of airplanes. The reason it is able to fly and get off the ground is because of a concept called lift. Due to the Coanda effect, which is the tendency of a fluid to stick to a surface that it is flowing over, the air follows the surface of the wing of the plane as it bends downwards, which causes a lower pressure zone above the wing. To bend the air downward, the wing has to exert a force on the air. This is Newton's first law. And because of Newton's third law, this causes an equal opposite reaction and thus, the air exerts an upward force on the wing. This causes lift. The more the wing is tilted, the more lift results.

Mahna Mahna

Mahna mahna. It's a good song by cake. check it out. It's been a pretty crazy weekend. I'm pretty exhausted from working for the food committee and then working for the malasada booth yesterday. I got last shift so I had to wash all these trays and dishes with some other cool people until almost midnight. All I remember was that daniel was having too much fun with the water spray. Anyway, it was pretty fun making malasada jams with Jaren and Kaitlyn. We used a couple cool songs and changed the lyrics to make malasada jams. Heres one of them from the song "I like big butts that cannot lie, you other brothas can't deny," except we changed it to,
I like malasadas and I cannot lie, you other brothas can't deny,
WIth the cinnamon buns and the sugary crumbs,
You can put two thumbs, UP!
Oh man, that's so beast. we did some a milli remixes and one day remixes too.
Other than that, just wanted to say thanks to doc who saved me 15 dollars. I was insulted by his comment though because he doesn't think that I will even touch the review sheet. I'll show him! Junk thing is that I still need to find a way to get myself to start...So onto some physics. I was playing baseball with a couple friends using this plastic ball and a huge inflatable bat. My friend hit the ball onto the roof and that reminded me of one of those baseball problems that we did for projectile motion. In fact, I found it. It's homework problem number 14.5 in chapter 4. To solve this problem, you use vectors and solve for the speed of the ball at contact with the bat by solving for the time in the x direction and then substituting t into the equation delta(y)=Vt-1/2gt^2. Ooo man, I just started my review! Baseball problems also use concepts such as impulse and the change in momentum of collisions.

magnifying glasses

Yo! I know we've been doing photoelectric effect and all that quantum physics stuff, but I'm gonna talk about magnifying glasses cause I finally really understand how they work. Magnifying glasses use a convex lens or a converging lens to make the virtual image that you see. In lenses, the virtual image is on the same side as the object, and in a convex lens, if the distance from the object to the lens is less than the distance from the lens to its focus, a virtual image that is larger than the object is formed. As a result, you see a magnification of the words that you may be reading. However, if the distance from the object to the lens is more than the distance from the lens to its focus, a smaller, inverted, real image is formed. That explains why you have to hold the magnifying glass at a certain distance for its desired effect.

Bubbles

Hey everyone, hows the weekend going? Hope everyone had a good good friday. I sure did. Played some ping pong and some tennis. Ok, so the other day, I helped my brother wash his car. Ever since I was little, I've always wondered why I saw such an assortment of colors on those thin bubbles from soap. After this chapter about interference, I now know why. Since the thin bubble is an example of thin-film, I can talk about thin-film interference. Some light reflects off the surface of the bubble, and other light rays reflect off the inside of the bubble. Since the light ray is entering a heavier medium with a larger index of refraction, it causes the light ray to experience a 180 degree phase change. As a result, when the light rays interfere at this area, there is destructive interference, and I see dark spots. However, at other places, when the phase difference of the light waves are zero or multiples of 360 degrees, the troughs and crests of each light wave match with the troughs and crests of other waves, causing constructive interference. Thus, I see bright spots on the bubble. At these brights spots, I can see an assortment of colors because it depends on the fringe number. At different fringe numbers, the light waves have different wavelengths, so I could see many different colors on the bubble.