virus & air-con.

[IT Minion]

As EFLI so eloquently put it then, why do clouds float?

A good point. At the nanometre scale normal assumptions and physical laws gets bit confused. Effectively whilst subject to gravity the other physical forces are larger and counter it.

Cloud particles are in the region of 70 micrometers. Significantly bigger than viruses.

 

[JohnD]

Water vapour is invisible so, if a cloud was water vapour, you couldn't see it.

you're thinking of steam. Look it up.

 

[EFLImpudence]

But we have some members of the public who are thicker than a brick...

...and Governments - second one. Is Health Minister the post they give to the thickos?

https://www.bbc.co.uk/news/world-asia-52194407

 

[EFLImpudence]

you're thinking of steam. Look it up.

There is confusion.

Steam - the bit just above the kettle spout is invisible then it condenses into the cloud; what is that called?
Water vapour - is the gas given off when water evaporates - also invisible.

 

[mattylad]

All the same, just slide/press the re circulation button in the car

 

[motorbiking]

Clouds are mostly tiny ice crystals and water drops which are supported by air which is higher density. So they float.

 

[Brigadier]

you're thinking of steam. Look it up.

No I'm not. You look it up.

 

[JohnD]

I have already verified it.

 

[transam]

Taken out several (one recently) warm air heating systems and installed wet systems

Due to. The owners concerns about spreading germs around the house?

 

[Brigadier]

I have already verified it.

I am happy for you then.

 

[Vinty]

If the air conditioning systems in supermarkets were capable of spreading Cov19 virus wouldn't the most at risk be the staff working in them 24/7.
Working on the "Canary in the coalmine" principle, wouldn't there be a disproportionate number of infections amongst staff in these Supermarkets if the aircon was pumping out infected air all over the building.

 

[Notch7]

If the air conditioning systems in supermarkets were capable of spreading Cov19 virus wouldn't the most at risk be the staff working in them 24/7.
Working on the "Canary in the coalmine" principle, wouldn't there be a disproportionate number of infections amongst staff in these Supermarkets if the aircon was pumping out infected air all over the building.

thats a fair point

I wonder if supermarket air con is spreading a low volume of virus around the the whole supermarket and maybe doing a weekly shop is giving people a low dose which is just enough to build immunity, but not enough to be ill (pretty unlikely. but hey you never know)

 

[Brigadier]

If the air conditioning systems in supermarkets were capable of spreading Cov19 virus wouldn't the most at risk be the staff working in them 24/7.
Working on the "Canary in the coalmine" principle, wouldn't there be a disproportionate number of infections amongst staff in these Supermarkets if the aircon was pumping out infected air all over the building.

I have no doubt that, in principle, the air-con is capable of keeping aerosols with virus within, airborne.
Whether they circulate it around a store to any extent would depend on whether the system was a recirculating type, or replaced the stale inside air with fresh from outside.
The latter would then be continually diluting any airborne contaminants.

 

[Vinty]

thats a fair point

I wonder if supermarket air con is spreading a low volume of virus around the the whole supermarket and maybe doing a weekly shop is giving people a low dose which is just enough to build immunity, but not enough to be ill (pretty unlikely. but hey you never know)

That would be a great marketing ploy for Tesos, Free immunity with every 50 quid you spend.