Ripple tank

A ripple tank is a shallow glass tank of water used in schools and colleges to demonstrate the basic properties of waves. It is a specialized form of a wave tank. The ripple tank is usually illuminated from above, so that the light shines through the water. Some small ripple tanks fit onto the top of an overhead projector, i.e. they are illuminated from below. The ripples on the water show up as shadows on the screen underneath the tank. All the basic properties of waves, including reflection, refraction, interference and diffraction, can be demonstrated. Ripples may be generated by a piece of wood that is suspended above the tank on elastic bands so that it is just touching the surface. Screwed to wood is a motor that has an off centre weight attached to the axle. As the axle rotates the motor wobbles, shaking the wood and generating ripples.

Read more about ripple tank. Click the link:
http://www.en.m.wikipedia.org/w/index.php?title=Ripple_tank&mobileaction=view_normal_site

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About afdhaal

I'm afdhaal. Student of D.S Senanayake college, Colombo. And as well as Nooraniya M.M.V, Zahira College, MW. I belive that "People with passion, can change the world for better",Steve Jobs. Im passionate with what I'm doing. Im an optimist. I always think positively. I don't have a single place in my heart to NEGATIVE THOUGHTS. This is just the beggining. Just it's FIRST STEP OF MY JOURNEY.

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