Monday, April 28, 2008

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.

Monday, April 14, 2008

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.

Monday, April 7, 2008

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.