The Last one...

Last week of Physics, AP test on Monday...All our hard work in Physics this year coming to a culmination. Seeing as this is my last blog I guess I'll just reflect on this whole year. I did not enjoy it very much. From the lab groups to the tests to almost everything, I kind of regret taking AP this year, but whatever...One more day I have to focus and it'll be over. Now to the Physics portion of today's blog, yesterday I mas in a pool so I'll just talk about bouyant force. It is equal to volume displaced times density of water times gravity. But the weird thing is that in the pool my legs kept floating up, so I have no idea why. The buoyant force must be greater or something. Anyways, this is my last blog, good luck to everyone that reads this. Wait a tick, no one reads this. Some things haven't changed. Go me!

Almost There...

One more week...dangnabit. If you've read any of my past blogs (although I'm sure no one has, or is even reading this now) you'll see I try to write about current stuff going on. The subjects might be random sometimes, but I assure you they were sparked by something that happened that week. That being said, yesterday I went to that AP US practice exam, and saw Kun Woo with a lacrosse stick. Yup, I'ma be talking bout lacrosse, deal wit it. Too bad I don't know anything about it. I do know about torque, however, and the ball sits in a little net at the end of a stick when people shoot in laccrose, right? Anyways, when they shoot that sucker, they whip that stick forward, and the ball goes flying out with a snap. In case you forgot, Torque is radius*force, and the force and radius is big enough so that tiny ball has great acceleration. Imagine if the stick were like the size of a loaf of bread or something, that wouldn't get much torque. As for the other physics of lacrossse, I can't think of any and need to finish the Mayor of Casterbridge. GO ________!

Who are those dudes? I don't know.

Physics in the Movies

Well, last night I was at the Band sleepover thing, and all night they had movies playing keeping me up, and it was cold, and all I had was a pillow and blanket. So I just woke up from a nap, and in my Physics blog, the third to the last one, I'm going to talk about some movies. Movies are no exception to the rules of physics. Talk about any knid of movie, and there will be all those elements that we are reviewing right now. Ironman's thrust blast or whatever he uses to fly is all about Newton's third law and net forces. Avatar takes place on another planet (Pandora) which means it has its own gravitational pull, but it probably has one similar to earth. Just looking at any movie trailer I can see hundreds of examples of projectile motion, kinematics, fluid motion, and what not. I am going to be honest now, though. If you are seriously reading this and are not doc, you need to get a life. I'm not sure why anyone would read this or if doc even reads this. I'm going to talk about B-Ball now. Wed, it's going down. And heat are down 0-3. Come on Heat!!!!!!!!!!!!!! Win some games!!!!!!!!!!!!!!

Tactical Physics

This one goes out to Tracy...Alright, you ever been playing Call of Duty: Modern Warfare 2, and some douche is camping on top of a building, n00b t00bing your team spawn. And then you see a harrier, and you're like "awww damn, this try-hard probably has a nuke and is a total douche." Then next thing you know, your team is hiding in the warehouse, trying to outrun the chopper gunner, and none of them want to shoot it down. So you shoot it down, but you know that somewhere, that douche already has what he wants, and is going to wait to use it. I'm talking about the tactical nuke, based on the nuclear or atomic bomb. Seeing how we just studied nuclear fusion and fission and all those chain reactions, I thought I'd look into the bomb. In MW2, it just kills everyone and ends the game. In real life, however it is much more devastaing. First off all we'll look at the ATOMIC BOMB, it works on basically the same principles of nuclear power : NUCLEAR FISSION. Usually it is plutonium, triggered by an explosion of TNT or something on impact. That sets off the chain reaction of fission, which we know can produce huge amounts of energy, like in a power plant. A HYDROGEN BOMB uses NUCLEAR FUSION first by combining detreium and tritium, causing a huge explosion. But wait, there's more, because the bomb casing is made out of uranium, so the fusion explosion causes a fission reaction in the casing, making it a huge explosion. Of course, the explosion is not the only deadly thing about a nuke. The radiation from the nuclear particles released can totally kill people and plants, just look at okinawa. I went tot the war memorial there and it was pretty scary. So next time you get a 25 kill-streak, and have a nuke equipped, think about the millions of animals and plants and humans you'd kill with that nuke, and just don't use it. Just quit being a douche, and don't use the nuke......Tracy.....

The Masters (of physics)

That would be my lab group, "The Masters of Physics," anyways, thats what doc calls us. Anyhoo, I was watching The Masters golf tournament, and this commercial came up about Phil Mickleson and all these kids, and he said some thing like "these kids are gonna be engineers, and they gots to use math, like I use math on the golf course, so donate to my ofundation to teach kids better math." I was like, waitasec, math? On the golf course? And the I remembered projectile motion, friction, momentum, collisions, all that stuff we forgot about months ago. First of all, the driver has a lot of torc\que because of the circular swing, and it produces a lot of force. Then, through a collision, that force is transfered to the ball. The ball will land somewhere, for me it usually lands in the hole, but for those less skilled people it will landon the fairway. But it will bounce because of all that momentum and what not. When people get to this thing called a green (as I said before, I ace it all the time), they have to get this putter thing and put it. That is where friction with the green comes in and they have to compensate by hiting it harder or slower. Anyways, talking about all this golf makes me want to go to Makalena's, but that's in Waipahu and I don't feel like getting mugged today...go heat?

It's raining right now

Yeah, it's totally pouring over here in Manoa, but like anybody cares or even reads this thing. My internet is down so I'm doing this on my dad's laptop. Anyways, Sometimes when the rain lets up like it did five minutes ago, the valley looks all clear and I can see clearly whe the rains gone. Why is this? I remember from 7th grade, Ms.Finn, she told us it was the high pressure or low pressure or something like that. So I'm not really sure but it must have something to do with wavelengths travelling faster in low pressure or some thing like that. Anyways we have a test tomorrow, and Alex, if you are reading this (of course you're not, who reads this crap?) and you didn't finish the labs then I guess we're screwed to a 13/20 or something. Seriously, I want out of my lab group, Drew and Alex never listen to me...I want out.

Polarized Lens

I'm not sure if I have to write a blog this week, but I'll just write one anyways. We studied polarized light last chapter, or at least we read about it. Back in the day when there wasn't any video games consuming my brothers' and my life, we used to go fishing by his bridge place, and my friend had polarized glasses and with them he could see all the fish in the water. As everybody knows, polarized glasses pretty much eliminate glare by only letting in certain orientation of rays, mostly the light rays entering head-on, so no glare comes from the sides to get in your eyes. Looking at water without polarzized lens, there is all sorts of refracted light from all the water entering your eyes, so there is a glare, but wearing polarized lens eliminates glare and so you can see the fish...If I didn't have to do this blog this week Ima be so PO.

The first image is a regular lens, the second is with polarized, which you can clearly see into the water.