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Can I set up a greenhouse in a spare bedroom? If so what do I need?

the humidity would be to high and you would ruin the walls, ceiling and furnishings

2007-03-02 08:42:18 by b

A documentary/promotional video for a greenhouse run by Isaac Wiegmann. Isaac is working to establish a self-sustaining greenhouse and lifestyle ...

So how do greenhouse gases work? They allow visible light from the sun to pass through the atmosphere, but block infrared radiation (heat) from leaving it. I know greenhouse gases are some of the bigger molecules, so I think that has something to do with it. Basically, what makes carbon dioxide a greenhouse gas and nitrogen not a greenhouse gas?

Also, anybody know the specific wavelength ranges that greenhouse gases (particularly carbon dioxide) block and those that it allows to pass through?

tl;dr: how do greenhouse gases work
or, even more succinctly: why are greenhouse gases greenhouse gases?

The idea is simple. Every molecule is made up of atoms and these atoms can vibrate within that molecule (think of them like balls on springs). If they can vibrate at a frequency that corresponds to an infrared photon frequency, then that molecule will absorb that photon and re-emit it in a random direction. So that photon will end up bouncing around in the atmosphere more that it would have if it were not absorbed and passed straight through the atmosphere.

Now you might wonder why some molecules absorb in the infrared and some do not. Well, everything absorbs at some wavelength. The frequency something absorbs at depends on how tightly bound the parts of the 'something' are. Atoms typically absorb in the visible or ultraviolet frequencies because the electrons on the atoms are very tightly bound so they vibrate at very high frequencies. Molecules are less tightly bound, so they absorb in the visible and infrared. To absorb in the 'green house' band, then they simply need to be bound with the right 'tightness'.

Actually, the mass of the molecule is not the critical issue. Greenhouse gasses are not heavier than other gasses. It simply that they have some frequency at which they vibrate that happens to be in the infrared (and most molecules have tens of different frequencies at which they vibrate). CO2 is an example of a greenhouse gas, but methane (CH4) is a much more 'efficient' greenhouse gas and weighs quite a bit less than N2. In fact, water is one of the worst greenhouse gasses (H2O). How good a gas is at being a greenhouse gas simply depends on what frequencies it vibrates at, which depends on how massive the atoms in the molecule are and how strong the bond is.

2009-03-08 11:28:34 by worldthoughts

Price: $299.00 $208.97

Decorative powder coat finish matches valance on cover and walls
Wing Nut assembly does not require tools
Sturdy, rust resistant frame

My husband has a full time job as an operator with a construction company. I have been a homemaker. We bought a greenhouse in 2008, and we are planning to market organic vegetables. My question is, can I use my greenhouse as a tax deduction, even though it hasn't really made us any money yet, or will that put up a red flag because my husband's job isn't related to greenhouses?

It is a red flag because you are not really operating as an Organic Produce Marketer. Don't itemize the greenhouse yet..

2009-02-25 09:35:35 by Marj

Price: $59.99 $35.99

18-Inch L x 79-inch H x 27-inch W
Easily assembles in minutes with no tools required
Heavy-duty growhouse with cover

Also, could you please list the most abundant types of greenhouse gases. Thank you.

a greenhouse gas is a gas that absorbs Infra red energy that is reflected from the earths surface. the radiation causes the bonds in the molecule such as CO2 to vibrate and release energy in the form of heat. this cause heat to be kept in the atmosphere of the Earth and therefore leads to the overall temperature of the Earth to gradually rise

2008-09-25 12:06:20 by Super Cell

How practical is a greenhouse in the Summer? I am thinking on building a very small greenhouse but now that it is almost Spring I am just wondering what the upside would be. I am not planning on any special Plants just flowers and a small garden variety. I live in an Apartment Complex so it would be out on my Balcony.

Depends a lot on where you live. Here in central Texas it will burn up most everything during the summer unless you have a way to add shades that cut the sun way down.

2009-03-14 15:45:49 by cherokee_7563