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Does the shape of the water particles affect the appearance of the rainbow?
It's not the shape of the water particles; they're all spherical.
The larger raindrops are slightly flattened as they fall
Quote from: LeeE on 12/07/2009 13:03:21It's not the shape of the water particles; they're all spherical. The bigger the drops are the more they deviate from spherical ...QuoteThe larger raindrops are slightly flattened as they fall ...sorry, you cannot view external links. To see them, please
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It's not the shape of the water particles; they're all spherical. No, it's the shape of the mist/spray; with a bit of practice you can make a 'U' shaped spray, for example, and with special nozzles you can make different shaped ones.
I'm not disputing the mechanism of the optics, which I do understand, and what you've said is perfectly true for a uniform mist. The only point I was trying to make is that by making a non-uniform shaped mist you can get some strange shaped rainbows. I don't need to perform the 'experiment' again (I was washing a car using a hose without a nozzle and used my finger/thumb to make a jet in an effort to dislodge some crud from beneath the wheel arches) as I was so intrigued by the effect that I was distracted for a good five minutes, trying different spray shapes and orientations to see how the appearance and shape of the rainbows changed.