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To reduce global warming we have to block or to change direction of some of the incoming photon towards the earth's surface so that these photon could not reach the earth's surface.
The photon have to pass the atmospheric air of the world to reach the earth's surface.
The path of any electromagnetic wave changes with change in the density of the medium by which it passes through.
So the path of incoming photon towards the earth surface may be changed if the density of atmospheric is changed.
we can use sound wave for this purpose.
When sound passes through air ; the air is divided into many layers of different density.
Suppose we plase a very high powerful and high frequency sound sourse at some height from the ground.
When the sound source start producing sound wave of high frequency the atmospheric air above the sound source will be divided into many adjucent layer of different density.
So a good percent of the incoming photon canchange direction or reflect

2007-06-17 23:53:04 · 6 answers · asked by Shamiul_islam 1 in Science & Mathematics Physics

6 answers

scientific answer

Good thinking ,
"The path of any electromagnetic wave changes with change in the density of the medium by which it passes through. "
Yea, that is correct(partially). The speed of electromagnetic wave increases inversely to density. Its speed will be low when it passes through denser medium. But I don't know how the path changes.

May be you are taking of refraction.
In that case we may not be able to produce enough change in density , so that 'total internal reflection' takes place. And one more thing, it is infrared rays that bring heat with it, which has longest wave length. So it will experience less refraction than the visible light. So what you have planned becomes becomes nearly impossible.

And I don't know that "When sound passes through air ; the air is divided into many layers of different density."

Yea, sound creates different layers of different density, but latterly not vertically. So it will have very less use.

And ur idea also seems to have many disadvantages, which I mean , may be even disastrous to our present environment(some of them are stated by the participants).

So your idea seems impracticable. But congrats for your try. Keep trying. One day your ideas may bring about some revolutions too.
Try to reduce the emission of green house gasses , and make our mother earth greener.

2007-06-18 01:07:46 · answer #1 · answered by science seeker 1 · 0 0

That's a really interesting idea!

I can think of a couple of problems though -

1) How much of a difference in density would you need to change the path of the light significantly? Remember the air in the upper atrmosphere is much less dense than at ground level - and remember that despite this already-existing big difference, litlle if any of the incoming light is refracted away.

2) Behind every high-densitypart of your soundwave, you have a low density part. On hitting the change from high to low density, the light waves would refract in towards the earth again. So overall you'd cancel out most of the effect you wanted.

3) Do we really want to divert incoming light / heat? How would all the plants get on?

4) How much energy would you need to create all these sound waves? Remember that all machines waste heat (and as the sound energy dissipates it will be as heat), so your machine might have the effect of heating the atmosphere more than it helps!

I think unfortunately our only options are to reduce our production of greenhouse gases, or get used to a very different earth....

2007-06-18 01:56:33 · answer #2 · answered by samthesuperfurryanimal 3 · 1 0

Very ingenious, but the amount of energy you would need to selectively shape the atmosphere in order to alter its index of refraction and divert the light would be enormous. Remember that sound intensity follows an inverse square relationship from the source.

And where would the energy come from to drive these sound sources? I assume existing power sources like fossil fuels, etc., which would make more greenhouse gasses.

Amazingly though, someone else suggested a similar method, to put sulfer compounds in the atmosphere which would increase the "global dimming" and lower the solar radiant flux. Just one problem ... acid rain and worse pollution than ever.

The best way to reduce global warming is to attack the core problem ... and I'm not talking greenhouse gases, I'm talking about our combustion-based economy, the greenhouse gasses are result of combusiton inefficiency. We need to move to a low-entropy energy economy, and make a dent of the massive 50% energy drain of Heating, Ventilation and Cooling, (HVAC).

2007-06-18 09:19:20 · answer #3 · answered by mikewofsey 3 · 0 0

Global warming, as I understand it, has to do with greenhouse gases like carbon dioxide, some of the hydrocarbon gases, chloro-fluoro-carbons etc. produced here on earth and released into the environment as pollutants. Yours appears to be a new theory which when proven may win you the Nobel Prize. To me as a layman, however, you don't appear to be on very sound scientific footing. You are probably dealing more with Alchemy of the Middle Ages than Science of present day. All the same, good luck to your proposal.

2007-06-18 00:25:07 · answer #4 · answered by Paleologus 3 · 0 0

I see 3 problems with you proposal: a million. The ability to produce sufficient sound to do something on the brink of what's needed might take a million/2 the flexibility the rustic now generates. 2. Diffraction of light continually includes small angles. no longer a great sufficient attitude to do any good. 3. How could your gadget artwork all worldwide huge 24/7/365? the value ingredient, returned is prohibitive.

2016-10-09 10:48:04 · answer #5 · answered by ? 4 · 0 0

I see...treat the symptom and not the sickness. Interesting idea but I don't think it's feasible.

2007-06-18 00:02:11 · answer #6 · answered by gebobs 6 · 0 0

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