20-03-2017, 12:42 PM
61
Re: Diesel cars
Originally Posted by OldGreyFox
->
Quite true Malcolm, and all plants [Photosynthesis] churn out Carbon Dioxide after the sun goes down....Also, rotting vegetation in lakes and ponds produces Methane as it breaks down.
20-03-2017, 04:31 PM
62
Re: Diesel cars
Originally Posted by OldGreyFox
->
Quite true Malcolm, and all plants [Photosynthesis] churn out Carbon Dioxide after the sun goes down....Also, rotting vegetation in lakes and ponds produces Methane as it breaks down.
20-03-2017, 08:24 PM
63
Re: Diesel cars
Originally Posted by Judd
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You've got that arse about OFG. Plants absorb carbon dioxide and give out oxygen as a waste product hence all the kerfuffle about losing huge tracts of rain forests.
20-03-2017, 08:56 PM
64
Re: Diesel cars
Originally Posted by OldGreyFox
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Yes Judd, they absorb Carbon Dioxide during the day and then give out Oxygen during the day when the sun is shining on them, but the process reverses during the night in the absence of daylight. That is the reason why flowers are always removed from hospital wards during the night......
A slightly different explanation,
This idea started because, long ago, some hospitals removed the floweres from the wards at night. People thought it was due to the plants using up the O2.
Actually it was to stop people knocking them over in the dark.
To a rough aproximation you need a tree to provide enough oxygen for you to breathe. Since the tree is growing you know that it must, on average, take in more CO2 than it produces.
So the night time rate of CO2 production must be smaller than the rate of CO2 absorption during the day.
Since that's roughly the amount of CO2 you produce it's fair to say that, even if you had a whole tree in your room it wouldn't produce as much CO2 in the night as you do.
Keep the plants, but put them on sturdy tables so they don't get knocked over, and sleep well.
Unless they are triffids
« Last Edit: 12/11/2009 21:44:58 by Bored chemist »
20-03-2017, 09:00 PM
65
Re: Diesel cars
Originally Posted by swimfeeders
->
HiA slightly different explanation,
This idea started because, long ago, some hospitals removed the floweres from the wards at night. People thought it was due to the plants using up the O2.
Actually it was to stop people knocking them over in the dark.
To a rough aproximation you need a tree to provide enough oxygen for you to breathe. Since the tree is growing you know that it must, on average, take in more CO2 than it produces.
So the night time rate of CO2 production must be smaller than the rate of CO2 absorption during the day.
Since that's roughly the amount of CO2 you produce it's fair to say that, even if you had a whole tree in your room it wouldn't produce as much CO2 in the night as you do.
Keep the plants, but put them on sturdy tables so they don't get knocked over, and sleep well.
Unless they are triffids
« Last Edit: 12/11/2009 21:44:58 by Bored chemist »
.....But I like you.....
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