Wednesday, January 25, 2012

Wednesday, January 11, 2012

Monday, January 9, 2012

tesla mini project

     Nikola Tesla is famous for inventing the AC current and the AC bulb. one of his less famous invents was the tesla coil. he wanted to make lots f giant tesla coils and put them all over the world so he could "electrify the earth" so everyone could have free wireless energy. thomas Edison wanted to make everyone afraid of Tesla's invents so they would keep using his DC current instead os Tesla's AC current.
Tesla didn't like the fact that we used oil and gasoline to power our lives, he thought it was wasteful. he wanted everything to be powered by electricity.
This is a working Tesla Coil:


Thursday, January 5, 2012

Wednesday, January 4, 2012

resonance


Science Demo - Resonance
1. What I think will happen when the sound is played for the wine glass is: the glass will wobble and break
2. What really happened was: it only barely wobbled `
3. What does resonance have to do with bridge building? because if they don't buildna bridge right, the resonance of things like earthquakes, will destroy it.
Words:
1. Resonance - Is putting in energy at just the right time to increase the energy
2. Hertz- How many times per second
3. Frequency- the rate that something happens
4. Oscillate- to move back and forth

videos:
http://www.youtube.com/watch?v=XUz1ZI-w6LQ&feature=related
http://www.youtube.com/watch?v=nO0bSSXmr1A
http://www.youtube.com/watch?v=vIpnkqEDaUA&feature=related