View Full Version : Can clouds e dispersed?
at the end of the article it suggests the use of anti-aircraft guns, small planes and rockets to disperse the cloud. is that right?
http://news.bbc.co.uk/1/hi/world/asia-pacific/6153382.stm
Would they evaporate if one were to point a giant (or any other sized) hairdryer at 'em?
hmmm. I suppose if you detonated a container of "heavy water", the resultant vaporisation could result in normal water, and the cloud falling out of the sky.
Normal shells would have a dispersive effect, but they'd only blow the could apart & higher, which would mean it was only a matter of time before it came back, and more grey the next time.
A plane will chew up the clouds pretty easily, so long as it's jet propelled, but that'll prove expensive to say the least.
Sorry, just proving I'm a geek still :oops:
Er... The headline at that link...
Mice star as Olympic food tasters
White mice are to take part in the 2008 Olympic Games in Beijing - their task to protect international athletes from food poisoning.
:lol: What's all that about clouds then? :lol:
hmmm. I suppose if you detonated a container of "heavy water", the resultant vaporisation could result in normal water, and the cloud falling out of the sky.
Normal shells would have a dispersive effect, but they'd only blow the could apart & higher, which would mean it was only a matter of time before it came back, and more grey the next time.
A plane will chew up the clouds pretty easily, so long as it's jet propelled, but that'll prove expensive to say the least.
Sorry, just proving I'm a geek still :oops:
Your being sarcastic, right?
hmmm. I suppose if you detonated a container of "heavy water", the resultant vaporisation could result in normal water, and the cloud falling out of the sky.
Normal shells would have a dispersive effect, but they'd only blow the could apart & higher, which would mean it was only a matter of time before it came back, and more grey the next time.
A plane will chew up the clouds pretty easily, so long as it's jet propelled, but that'll prove expensive to say the least.
Sorry, just proving I'm a geek still :oops:
Your being sarcastic, right?
Not at all...
Heavy water is normal water with one hydrogen atom removed from each molecule. Coulds are very "diluted" water. Whilst they are still 2 hydrogen to every oxygen atom, the bonds are weaker (hence why they float upwards and cool, which condenses it, and strengthens bonds). Add more hydrogen and oxygen to concentrate the mix, the whole lot falls back to earth.
A conventional explosion would heat the cloud more, it dilutes more, so rises and takes longer to form a cloud. It would also cool faster, and so make a "stronger" cloud later, which would be darker. A jet engine disperses just the same way, but in a more linear way.
P.S. Cheers to Filipe for spotting the deliberate mistake :oops:
Filipe M.
16-11-06, 03:07 PM
P.S. Cheers to Filipe for spotting the deliberate mistake :oops:
8-[ Never mind me, I'm just peeing on somebody else's christmas tree... 8-[
I've learned an important lesson today.
Read the WHOLE message BEFORE clicking on any links.
:oops:
hmmm. I suppose if you detonated a container of "heavy water", the resultant vaporisation could result in normal water, and the cloud falling out of the sky.
Normal shells would have a dispersive effect, but they'd only blow the could apart & higher, which would mean it was only a matter of time before it came back, and more grey the next time.
A plane will chew up the clouds pretty easily, so long as it's jet propelled, but that'll prove expensive to say the least.
Sorry, just proving I'm a geek still :oops:
Your being sarcastic, right?
Not at all...
Heavy water is normal water with one hydrogen atom removed from each molecule. Coulds are very "diluted" water. Whilst they are still 2 hydrogen to every oxygen atom, the bonds are weaker (hence why they float upwards and cool, which condenses it, and strengthens bonds). Add more hydrogen and oxygen to concentrate the mix, the whole lot falls back to earth.
A conventional explosion would heat the cloud more, it dilutes more, so rises and takes longer to form a cloud. It would also cool faster, and so make a "stronger" cloud later, which would be darker. A jet engine disperses just the same way, but in a more linear way.
P.S. Cheers to Filipe for spotting the deliberate mistake :oops:
*bites lip*
*bites lip*
Yes quite.
May I suggest Linky (http://www.amazon.com/Complete-Idiots-Guide-Chemistry/dp/1592571018/sr=8-2/qid=1163690626/ref=pd_bbs_2/103-5499120-4913457?ie=UTF8&s=books) for you Baph ;)
northwind
16-11-06, 04:11 PM
You can "seed" rain clouds with silver iodide, the chinese do a lot of that. I just did a wee google and found that it's usually delivered by rocket, plane and- sometimes- by air-burst shells. So there you go.
so there's really no reasons for everyone to go holiday abroad then, am i right to assume all government needs to do is to fire a few rockets into the air and UK tourism would boom? :roll:
Sid Squid
16-11-06, 06:17 PM
I read somewhere, some time ago it's true so the details are lost on me now, that the Soviets used to blow cement dust out of aircraft into possible rain clouds that might make it to Red Square on parade days, this had the effect of causing, (presumably pretty filthy), rain to fall and the clouds to be dispersed.
Essex of Essex
16-11-06, 06:23 PM
Cloud seeding is an attempt to make rain.
Aircraft don't disperse clouds but if travelling at the right altitude will produce trails of condensation (contrails) which are just vapour held in suspension, when the air can no longer hold any more moisture it falls as rain.
Extreme amounts of heat will disperse fog on a localised basis, the RAF used it during WW2 to allow aircraft to land when otherwise they may not have been able to. F.I.D.O. Fog Intense Dispersal Of, was I understand troughs of burning petrol along side the runway, I heard it described by a Lancaster pilot as "like flying in through the gates of hell"
These days we just engage the second autopilot and the machine lands itself o suitable runways in visibility as low as 75 meters.
It's all about the nucleation sites innit.
philipMac
16-11-06, 07:37 PM
It's all about the nucleation sites innit.
'Tis.
But, there is more than one way to skin a cat. Tesla had some very interesting ideas about modifying weather. Some of which may still be Top Secret, ie what exactly happens at that HAARP station.
Tesla is my hero. Big time. Genius only barely begins to cover him.
northwind
16-11-06, 07:42 PM
Cloud seeding is an attempt to make rain.
Eh, yes. It encuragages clouds to drop their moisture. When a cloud loses it's moisture, it becomes a sky :)
hmmm. I suppose if you detonated a container of "heavy water", the resultant vaporisation could result in normal water, and the cloud falling out of the sky.
Normal shells would have a dispersive effect, but they'd only blow the could apart & higher, which would mean it was only a matter of time before it came back, and more grey the next time.
A plane will chew up the clouds pretty easily, so long as it's jet propelled, but that'll prove expensive to say the least.
Sorry, just proving I'm a geek still :oops:
Your being sarcastic, right?
Not at all...
Heavy water is normal water with one hydrogen atom removed from each molecule. Coulds are very "diluted" water. Whilst they are still 2 hydrogen to every oxygen atom, the bonds are weaker (hence why they float upwards and cool, which condenses it, and strengthens bonds). Add more hydrogen and oxygen to concentrate the mix, the whole lot falls back to earth.
A conventional explosion would heat the cloud more, it dilutes more, so rises and takes longer to form a cloud. It would also cool faster, and so make a "stronger" cloud later, which would be darker. A jet engine disperses just the same way, but in a more linear way.
P.S. Cheers to Filipe for spotting the deliberate mistake :oops:
You know, I read this again yesterday and it's a work of genius. Simultaneously, it manages to be totally inaccurate and yet somehow sound totally plausible to the uninitiated. Classic.
You know, I read this again yesterday and it's a work of genius. Simultaneously, it manages to be totally inaccurate and yet somehow sound totally plausible to the uninitiated. Classic.
You'd of been fully aware that I was taking the whatsit if you'd seen the mistake ;)
One of my moments again.
The mistake was that I wrote that H2O was actually HO2 :oops:
philipMac
17-11-06, 04:03 PM
You know, I read this again yesterday and it's a work of genius. Simultaneously, it manages to be totally inaccurate and yet somehow sound totally plausible to the uninitiated. Classic.
You'd of been fully aware that I was taking the whatsit if you'd seen the mistake ;)
One of my moments again.
The mistake was that I wrote that H2O was actually HO2 :oops:
Baph, you basically are a Welsh version of this (quite scary) Russian hacker dude I know.
Your sense of humour, nerdishness, and general style are identical to his.
Damn philip, you got me :oops:
Only problem there, is that I'm English, though I live here, I don't speak a word of the language (well, a few), but shhh, don't tell the locals! ;) Oh yea, and the only people that call me 'Misha' are the one's behind the counter in the chinese takeaway!
At least someone on the org sort of knows what to expect from my sense of humour. I take it you saw yesterday's antics too, which were were funny on multiple levels (to me at least) :oops:
Stray cats and dogs will vanish from the streets, he says, and anti-aircraft guns, small planes and rockets will be used to disperse rain clouds, ensuring there will be blue skies over Beijing for the duration. :
So are they going to fire all the stray cats and dogs into the air to drink all the water in the rain clouds? :oops:
taxi.
philipMac
17-11-06, 04:51 PM
Ha ha, are you English then?
I see.
I am only half joking though, I think you and XXXX would get on like a house on fire.
He is strictly White Hat now, (ASFAIK),
When he arrived the network admin became so worried about what he would get up to on the network at night, that they banned him until they hired someone that could understand what was going on.
(What was happening was he was probing the network and every morning the admin people would end up with a list of vulnerabilities, because he was frightened that "certain people from his past" would find out where he had moved to, and start attacking him there.)
Eventually they hired him, when those "certain people" found out where he had moved to and killed our network.
That's sort of the cleaned up version of the story. The whole thing was quite funny.
Ha ha, are you English then?
I see.
That's sort of the cleaned up version of the story. The whole thing was quite funny.
Small world... seems like I have the answer to that PM.
And yes, I'm English.
philipMac
17-11-06, 04:54 PM
Edited too late. Bugger. I definitely released too many details there Baph.
See PM. :lol:
philipMac
17-11-06, 05:01 PM
Thanks Baph. :wink:
Very small world. :shock:
Thanks Baph. :wink:
Very small world. :shock:
Lets just say that I've shared a common interest. :)
philipMac
17-11-06, 05:05 PM
Thanks Baph. :wink:
Very small world. :shock:
Lets just say that I've shared a common interest. :)
Ahem. Yes. Probably the less said by all the better at this point. How funny was that. I just got very worried for a moment.
Thanks Baph. :wink:
Very small world. :shock:
Lets just say that I've shared a common interest. :)
Ahem. Yes. Probably the less said by all the better at this point. How funny was that. I just got very worried for a moment.
Understandable :lol: I have no interest in what you feared though :)
Anway, perhaps this derail should stop...
Alpinestarhero
17-11-06, 07:15 PM
About that "heavy" water...
...if you remove a hydrogen atom from water, you get something that is lighter. And its certainly far removed from water!
You get hydroxyl free radicals, which are highly reactive and play an important part in the depletion of ozone (O3)
Heavy water is simply deutrated water i.e. the hydrogen atoms of the water are replaced by a common isotope of hydrogen, deuterium. This has an atomic mass unit of 2, compared to hydrogen's 1.
Matt
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