aww so sad. last journal of the year. i think...
this weekend i was super busy and didnt have time to take quality pictures so im ending this with a video. in this vid, im at a camp where we had kids from japan with us. this is the end of a intense water balloon toss game. to win the game, you are supposed to extend the time you catch the balloon so that the force it hits your hand is spread out over the time. i didnt want to win so i just beamed my balloon at my partner, which a lot of kids are doing in the aftermath. see how the balloon is travelling in a parabolic motion. wow. the balloons want to keep traveling in the same motion but another forces stops it, mainly a body or the ground, and it pops.
uh. this is all i can think of right now cuz the caffeine is wearing off.
bye bye

vrrrrrrrrmmm

earlier today my brother was watching a playoff game on espn while i was eating lunch. during a commercial he flipped up a channel and ended up watching drag racing. i never really watched a race before because it didnt really look interesting but it actually is because some races are determined by a few miliseconds and some races are determined by a couple of second becasue the cars are all designed differently. this remined me a lot about the mousetrap cars we had to make. the car everyone wants has a low moment of inertia because the race only lasts for a couple of seconds so the wheels start spinning easily. the equation is I=mr2 (that means squared). also, you would want wheels with some traction so that it makes your wheels spin faster initially. i dont know where they stationed the mike but i did get a chance to experience the dopler effect.

i learned that drag racing is kind of fun to watch when you dont have anything to do :)

more of orch coolness

on saturday i played at my last concert EVER. we had to be there at 4:30 even though it started at 7 so i had a lot of down time and explored backstage. when we were going through our dress rehersal, a rather bright red light shined right in my face. i then realized that this is the perfect place to take a physics picture. backstage i found a light with a blue filter. this made a lot of objects look different colors. the other picture is what happened to the as the red light shone. the white wall turned red and the darker parts are the absence of light cuz there were these huge screens separating the stage and backstage.

work work work

i just got a job and ive used so much physics and japanese. i had to grab stock today and i loaded a million supplies onto my cart. i had to push the cart up the ramp, which took a lot of work bc it was so heavy. as i stepped into the elevator, i felt the floor go a little lower, which meant that the cables had more tension in them. then, i had to go down another ramp but this time gravity worked with me and helped me roll the cart. i normally do the closing shift so when the customers are gone and we lock up to clean inside, we usually turn the volume up. tonight i was washing the dishes. by the sink, the noise sounded normal but when i walked towards the door to go to the main room, the music was super loud. the sound waves from the different speakers probably crossed right there, creating overlapping troughs and crests, creating a larger sound.

orch is cool

This week in orchestra, when the class was tuning their instruments, i stopped early because i finished tuning. i put my instrument down in rest position with my left hand lightly touching the strings on the fingerboard. i noticed that my d string was vibrating slightly. why? because of resonance of course. someone else's d string was the same or near my strings natural frequency, which caused it to oscillate.

hidden substation

this weekend, i was driving home one day and i magically found this power substation, at least that's what i think it is. i totally did not see this before. i was like where in the world did that come from? so i walked back to investigate this place and took a picture. we learned in class that the electricity from the magnetic field feeling a change when a magnet is moved through a coil of wire, probably rather large ones, is passed from the power plant to the transmission substation to the transmission lines and then to this attractive piece of machinery. These then pass it through the power lines, where the voltage goes down so that it is able to perform when we use electricity.

pancakes

last weekend i worked at a pancake fundraiser for key club. i was there from 5 am to 12. ridiculous i know. anyways, me, my friend and this weird guy, chang, from kaiser were in charge of making pancake batter. we poured the cake batter and water into this rather large mixing bowl. there was a super big mixer spatula thing that rotated which had 4 levels of intensity. the weird dude liked to change the speed of the mixer and he did that quite often. one time when he put it on level 4 by accident, the batter flew off tangent and got the sides all messy. i also did a lot of work by pushing the heavy bucket of batter to the station that cooked the pancakes.

muscle woman

a couple of weeks ago i found the most perfect physics moment but because it happened right after i posted one and the next week was a no homework weekend, i was too lazy to put it up so here it is...
as i was making myself all pretty i accidently knocked over something and one side of my earing fell down the drain. i asked my dad if he could get it for me but NOOOO he said that i should learn how to do it so if it ever happened again, i would know what to do. so i had to take out everything from under the sink. then my dad said that i had to take that u shaped pipe out so i used a pipe wrench. i put my had near the top because i thought i was going to have more grip but i was wrong. i had such a hard time. then i realized that i needed to have a longer lever arm because torque is forcexlever arm. so i put my hand near the end of the arm and i rotated that screw like a pro, except that i had good pants on so they didnt slide down when i squatted. but the things inside that pipe was unbelievalby gross and i gagged the whole way through. luckily i did find it and i washed it with alcohol and water and soap and everything imaginable. so now you can see why i was so lazy to post this.

boys soccer

these boys had a good season. too bad they kept that streak going. jk. i went to the friday game which is probably why they won. i didnt go on saturday. enough said :) they also made my throat sore even though i didnt really know what was going on half the time.
during the game, i saw so many phyiscs stuff going on. like the one law that newton discovered that explains inertia. the ref raised some flag that they were holding and a boy placed the ball down and kicked it. the ball would have stayed there but when it was hit by an outside force, it moved. it also would have kept going but because of the friction of the ball with the grass and the attractiveness that the ball had on the players, it slowed down and was kicked again. there were also soooooo many parabolas. there was also so much shoving around. F=ma. i think the boys were all about the same mass so the main aspect was acceleration. when a guy from the other team had the ball, some players charged right up to them, hitting them with so much force that they often fell down.
good game to the boys and this is my physics dedication to them.
peace

my hubby chris brown

of course i went to the chris brown concert and of course i took a lot of pictures and of course i found some physics stuff in my pictures.

1. chris brown has some amazing moves. when he did flips, he was one hott projectile.

2. he was on this platform that rotated. cb and his dancers were dancing on the platform while it rotated, reminding me of that pretty hard physics problem on the exam.

3. the family next to me bought those light toys. the light rotated around the stick handle. the plastic cord created tension and the light did not fall off in the tangental direction.

4. another projectile was when he took his clothes off and threw it in the audience. my lucky cousins friend caught that.

thats schocking

earlier today my little brother brought out a shocking game, literally. there is a light in the center of the stand, and it flashes red and has sounds coordinating with the flashes. then, at a random point, the light turns green. when the last person to press the button when the light turns green gets a little shock, just like those shocking joke pens. i thought that maybe this was related to what we are learning but its really related to battery stuff. Basically there is a transformer in there to regulate the amount of voltage. when the field in the transformer changes, voltage is created. when you push that button last, you feel the voltage exerted from either moving or changing the strength of the magnetic field.
oh and on another note, i practiced my cling wrap skills today so i am officially better than katie at ripping off pieces.

japanese festival

last sunday i had to help out making okonomiyaki at the japanese festival. on the outside of the okonomiyaki, there is a layer of egg and on the other side, there is batter. we made the batter by scooping the batter from a laddle and pouring it on the stove. they started from the middle and worked their way out, making circles. i noticed that she was going at a constant velocity so the bigger the circle was, the slower the angular velocity. after working i walked around the park and saw many cool things. then i ran into my little cousin playing on a jumper. there i saw potential energy turning into kenetic energy when she jumped down from the top and slid to the bottom.