Superposition of Waves

A very old school demo. With no black plastic inserted, a red wave is shown. The plastic molds create a pattern with the green beads, and the new red wave is the sum of the new green wave and the original red wave. You can see constructive and destructive interference by shifting the green pattern left and right.

Filmed by Dave Morton at Columbia College Chicago.

[anuragsabar]

this is by far the best explanation to the topic ever found !!

[ahanakanchan]

Wonderful explanation. The demonstration with the apparatus really made the concept clear.

[deepasinghal]

Maths, quantum, organic chemistry, stocks is easy 5o understand but world has pathetic teachers out onthe loose while the good ones are locked away in a paid museum

[sujianil]

I have been trying to memorise the definition but couldn't cause I didn't really understand the theory. This helped me to finally understand it. Thanks a lot.

[hxh_]

cleared the visualization t the next level

[dylanparker]

would love to have one of this apparatus - love it

[stuffthings]

I was just showing a few co-workers this principle. I dig the model. It could be a game: guess the final wave.

[shrivishnu_xo]

Amazing video... Hats off, make everything more easier

[mitrajeetpauliitism]

Old school is often the best school ..

[ujjawalmishra]

Thank You so much. Very good for imagination.

[silva]

thank you so much this helped me a lot!

[mandwaleadi]

I would be learning this topic next year, Let see much will I remember.

[deborahgebremariam]

This made everything clear thanks a lot

[scottpecorino]

This is nice I still use a Delany book for attendance

[ElectricPeaPlayz]

My teacher wants us to note down a 23 page wave packet and then I have to write cards as a book assignment in English and review for social study quiz wowie.

[pranjalbarure]

Thank you so much it helped me a lot 😊

[zakirhussain-jsku]

Excellent demonstration. wave after destructive interference apear to straightening at the amplitude of initial wave. Should it not lower down.

[feztrath]

thanks this is the best explanation i have seen, and right to what i wanted to know, thanks i might even make an spanish version of this :3

[amitajain]

In which course does this part comes in yor country

[yprgjrz]

But look at destructive phase!!!
At that position wave tops are not in opposite phase for each other!!