Maser Heating: How Far & How Much?

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Discussion Overview

The discussion revolves around the feasibility of using a MASER to vaporize a hole in a cloud, exploring the necessary conditions, energy requirements, and potential limitations of such an approach. Participants consider theoretical aspects, practical implications, and alternative methods for cloud manipulation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the possibility of using a MASER to vaporize a hole in a cloud and inquires about the effective range and spread of MASERs.
  • Another participant notes that the feasibility depends on various factors, including power output, frequency, and the physical dimensions of the MASER.
  • A participant expresses uncertainty about specific numerical values but suggests that the best available equipment would be necessary for any significant effect.
  • Concerns are raised about the energy required to vaporize and re-condense water in clouds, indicating that local heating might be possible but significant effects would require vast amounts of energy.
  • One participant argues that using a MASER may not be efficient compared to other methods, such as electrical elements or microwave transmitters, and highlights the challenges of scattering in the atmosphere.
  • A comparison is made to the inefficiency of heating a bathroom to illustrate the energy demands that would be necessary to affect a cloud.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility and efficiency of using a MASER for cloud manipulation, with no consensus reached on the practicality of the approach or the specific energy requirements involved.

Contextual Notes

The discussion highlights the complexity of the problem, including the need for specific assumptions about equipment capabilities and environmental conditions, which remain unresolved.

ablaty
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Would it be possible to use a MASER to vaporize a hole in a cloud?

How much would the current best MASERs spread out over a mile?
What's the farthest a MASER could be from an an object and still heat it up?
 
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The answer to your questions depend on a number of factors such as the power output, the frequency and even the maser's length and diameter.

I have a question too. How would you know there isn't a plane on the other side of the cloud?
 
As for the factors... I don't know any numbers, but say you have the best possible equipment available today.

As for the plane... Its all theoretical... I'm just wondering if it is possible. Assume no plane fly near where it is set up.
 
When you do some sums, you find that the total energy involved in vaporising and re-condensing the total amount of water to form a cloud is pretty enormous. Although one could produce some local heating and re-evaporate a small region of the cloud, it would involve a vast amount of energy to make a significant effect.
Using a laser /maser for this sort of exercise is not, actually a good approach because they are very inefficient devices. Better to use the energy directly in the form of an electrical element or a microwave transmitter, focussed with a dish reflector. You don't need a laser thickness beam, in any case because it would soon be scattered.
The problem is not unlike what you encounter in your bathroom on a cold morning, after taking a shower. You need the bathroom heater (say 500W) on for about 15minutes, to make any real difference to the 'steaminess'. That suggests the need for many kW, if you wanted to tunnel through a cloud effectively. If this were feasible, Fog Dispersal Systems would surely use the method everywhere. The only method that seems to work seems to be to burn tons of fuel around the runway and I think that is only done on rare occasions, if at all, in practice.
 

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