Monday, March 16, 2009

lalala

So it was a really tough week for me, and I missed a lot of physics so I really don't know what to write about. A couple weeks ago there was a candle light vigil held for my Aunty at Waianae High School. They claim that there were over 1000 people present, overflowing the auditorium. There were speakers using a microphone in order for everyone to hear. Because there were people outside of the auditorium, the sound waves from the microphone must have carried the sound so that the people outside could hear. 
And now we're talking about lights and circuits. I am not toooooo good at it right now, except I know my house if full of them! (: 

Monday, March 9, 2009

(:

So it is finally the weekend. (: As I was driving into Palolo, there is a church on your way into the valley. On the top of the roof there is a long silver pole. Since I was young I always wondered what that was! To my surprise, it is called a lightning rod! Lightning strikes the closest object, aka the tallest. Because the lightning rod is taller than the rest of the building and is made of metal which is a good conductor, the electrons in the lightning travel directly into the ground rather than into the wooden building. If there was no rod present, the wood would immediately catch on fire and burn down. It is safer to be in a metal building because it is a good conductor, and the inside will have a net force of zero. Yay.