Saturday, March 15, 2008

refraction


So Adeline was having a ball with Doc's laser pointer. Julia and I kept giving each other glances and cracking up. Certain shiny surfaces like the benches or glass doors acted as mirrors and the light was projected back onto a paper Adeline held behind the actual laser.

We were walking past the fountain in front of Weinberg, so I was like "Adeline! Go see if the light refracts!!" She ran and it was amazing, it did!! Julia, who was on the side, could actually see the refracted beam through the water. AMAZING!

Sunday, March 9, 2008

o0o Mirage o0o

Ok so let's call the top mirror Mirror A, and the bottom mirror mirror B. As you can see, the focal point for Mirror A is on the middle of Mirror B and vice versa. so when the light rays come in, they are rebounded by Mirror B to Mirror A, come back parallel to Mirror B then, because of the laws of ray diagrams, are rebounded to the focus of Mirror B, which is on the point Mirror A where you think you see the image. This creates the "mirage"

Sunday, March 2, 2008

Radddddio


Who else besides me hates long car rides with your parents? ya thought so, everyone. so that's why someone invented something called the radio. it had three valuable uses: 1. drown out ur parents, 2. make them annoyed at "music these days" and 3. itz fun!! i never listen to AM, mostly only FM. i've grown up with radios and i never understood the difference between AM and FM. i thought AM music was just the stations that weren't good enough to appear on FM stations. but actually, they are different kinds of waves. FM stations vary the frequencies on the waves and AM varies the amplitude. cool right? ya, thought so