What is the "smoke" or mist you get above some water features?

dentstudent · « **on:** 09/07/2007 09:07:29 »

Have you seen it? I've seen some little water features (is Charlie Dimmock still around) in DIY stores and they have some smokey layer on the surface of the water. What is it and how is this formed?

DoctorBeaver · « **Reply #1 on:** 09/07/2007 09:12:10 »

It's the goldfish having a crafty ciggy

dentstudent · « **Reply #2 on:** 09/07/2007 09:13:46 »

Smoked haddock?

dentstudent · « **Reply #3 on:** 09/07/2007 09:18:19 »

Clearly its Ian GILLan, Ian Plaice and Jon "Dory" Lord doing their most famous track!

Soul Surfer · « **Reply #4 on:** 09/07/2007 09:26:08 »

I know what you mean, its a bit like the fog you get from dry ice and water although I don't think that can be the way its done. Looking at it it appears to be fine droplets of water or steam. my guess is that the drive for the fountain is not a pump but a very hot wire that briefly boils a bit of water to work the pump like a coffee percolator this also sucks some air through the mixture but it leaves a bit of cool steam in the air to float on the water.

dentstudent · « **Reply #5 on:** 09/07/2007 09:29:26 »

But wouldn't this make a noise too? The ones I've seem to be relatively quiet. And it really hugs the water surface too, which might not be the case for steam? Warmer bodies tend to rise, and this "smoke" certainly doesn't.

Soul Surfer · « **Reply #6 on:** 09/07/2007 23:11:27 »

After a bit of thought I tend to agree with you and wondered if it could be a process that atomises water droplets this could be a very powerful spray or possibly untrasonic cavitiation of the water surface.

If you Google +mist +fountain + water

You will see that they use ultrasonics to force fine droplets off the surface of the water.

dentstudent · « **Reply #7 on:** 10/07/2007 07:26:20 »

Thanks Ian! I'll go and have a peek......

Does it have any industrial use or is it purely for aesthetics? there must be a need somewhere for chasing water particles from the surface.

dentstudent · « **Reply #8 on:** 10/07/2007 11:29:51 »

OK, I've ssen the link, and understand that it is ultrasonics. But how? Is it a bit like the kitchen science experiemnt from a couple of weeks ago, with the styrofoam cup, the carpet and water? Where waves peaks collided, a mini fountain was formed. Do the ultrasonic waves work in the same way?

Soul Surfer · « **Reply #9 on:** 14/07/2007 23:41:19 »

The ultrasonic waves cause violent movement of the surface of the water so that small droplets of water are shaken from the top of the waves that form.

dentstudent · « **Reply #10 on:** 16/07/2007 07:30:39 »

Thanks SS! I think that's all clear now!

daveshorts · « **Reply #11 on:** 24/07/2007 12:25:25 »

I think it is similar to the kitchen science experiment yes

Chartreuxe · « **Reply #12 on:** 23/06/2018 20:38:15 »

Quote from: dentstudent on 09/07/2007 09:07:29

Have you seen it? I've seen some little water features (is Charlie Dimmock still around) in DIY stores and they have some smokey layer on the surface of the water. What is it and how is this formed?

Dry ice is added to the water feature to create the mist. It's CO2 from the frozen CO2 in the water. Observe that the 'mist' appears above the water reservoirs.

rami999 · « **Reply #13 on:** 12/08/2018 00:03:28 »

i dont know what are you talking about

How do roots growing in water differ from roots growing in soil? Started by neilepBoard Plant Sciences, Zoology & Evolution	Replies: 3 Views: 19311	11/06/2018 06:18:32 by pradeepkumar
Which weighs more, a litre of ice or a litre of water? Started by The ScientistBoard Physics, Astronomy & Cosmology	Replies: 42 Views: 43359	23/11/2022 14:04:51 by Peter11
Why is it that I don't normally feel the cold but can't get into cold water? Started by thedocBoard Cells, Microbes & Viruses	Replies: 4 Views: 20076	19/03/2020 15:03:54 by Paul25
When salty water freezes, why is the ice not salty? Started by chrisBoard Chemistry	Replies: 9 Views: 17288	01/11/2019 16:34:08 by alancalverd
Why can cold water feel burning hot if your hands are cold? Started by MartinBoard Physiology & Medicine	Replies: 1 Views: 22343	24/08/2008 10:27:08 by Kryptid

What is the "smoke" or mist you get above some water features?

dentstudent (OP)

What is the "smoke" or mist you get above some water features?

DoctorBeaver

Re: What is the "smoke" or mist you get above some water features?

dentstudent (OP)

Re: What is the "smoke" or mist you get above some water features?

dentstudent (OP)

Re: What is the "smoke" or mist you get above some water features?

Soul Surfer

Re: What is the "smoke" or mist you get above some water features?

dentstudent (OP)

Re: What is the "smoke" or mist you get above some water features?

Soul Surfer

Re: What is the "smoke" or mist you get above some water features?

dentstudent (OP)

Re: What is the "smoke" or mist you get above some water features?

dentstudent (OP)

Re: What is the "smoke" or mist you get above some water features?

Soul Surfer

Re: What is the "smoke" or mist you get above some water features?

dentstudent (OP)

Re: What is the "smoke" or mist you get above some water features?

daveshorts

Re: What is the "smoke" or mist you get above some water features?

Chartreuxe

Re: What is the "smoke" or mist you get above some water features?

rami999

Re: What is the "smoke" or mist you get above some water features?

Similar topics (5)

Follow us

cambridge_logo_footer.png