Tuesday 18 October 2011

Transmission of light

We began class by finishing the hand-out we were given yesterday called Speed of Light Problems.Again using the formula v=d/t. While we were all working we also watched a Myth Busters video called Moon Myth BUSTED! Moon Laser!
This video was made to prove that humans actually made it to the moon and left retro-reflectors behind. Retro-reflectors are made to bounce light back at the light source regardless of the angle, this differs from the mirror where the angle of incidence has to be perpendicular. After they found the exact location of the retro-reflector they pointed a strong enough laser in its direction and detected the reflection proving that there was clearly people on the moon.
After the video we correct the handout and talked a little about transmission of light and waves interfering with other waves.
Then Mr.Banow made us draw this nice little diagram below before class ended..














The next blog post will be written by the tallest person in our class.

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