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.