How come no matter what the colour of the soap or shampoo, the bubbles are always white?

The bubbles are the same color as the soap. They are mostly air though and there is so little ';soap'; in a bubble they always appear clear (or white when there is a bunch of them together.How come no matter what the colour of the soap or shampoo, the bubbles are always white?
The iridescent colours of soap bubbles are caused by interfering light waves. As light impinges on the film, some of it is reflected off the outer surface while some of it enters the film and reemerges after being reflected back and forth between the two surfaces. The total reflection observed is determined by the interference of all these reflections. Since each traversal of the film incurs a phase shift proportional to the thickness of the film and inversely proportional to the wavelength, the result of the interference depends on these two quantities. Thus, at a given thickness, interference is constructive for some wavelengths and destructive for others, so that white light impinging on the film is reflected with a hue that changes with thickness.





Great resource --%26gt; http://en.wikipedia.org/wiki/Soap_bubble


COLORED BUBBLES?! (Great article PopSci wrote a few months back --%26gt; http://www.popsci.com/popsci/science/0a03b5108e097010vgnvcm1000004eecbccdrcrd.html


Guy's site who invented colored bubbles --%26gt; http://www.zubbles.com/How come no matter what the colour of the soap or shampoo, the bubbles are always white?
The bubbles are actually clear, because they are 95% water. The reason they appear white is the same reason clouds appear white. The different surfaces of the bubbles refreact the light in different directions, so you can't see through them.
i am not sure but just the other day someone managed to make coloured bubbles, have a look at http://www.zubbles.com/ they might tell you, but I do know its a close kept piece of info on the science of the bubble
not anymore.


coloured bubbles have been invented!


check out the link below...
I think the simple answer is that the dye does not make it into the bubble.
Who ever said that bubbles are white???


The are colourless or rather what scientists would call ';achromatic';


In fact if u see it at different angles you will notice a wide spectrum of colors....


Its the beauty of quantum physics!!!!!
in bubbles air is present and even its surface is very thin and wether its soap or shampoo the film is formed of same chemicals hence the air donesnt reallly exhibit any colour
racism....