Intelligent Answers I Got !

[suntrack]

thanks for the answers.

q:1. if we give a 2X2 peace of mars a heat at the temperature of 50 degree celcious what will happen?
Q:2. why sun looks more red in the evening as compare in the morning?
Q3. whether we will succeed to gather the thundering at a one place? the power of thunder is going waste.
q.4. whether antartica will come into existance as a general sea?[full of water]
q5. what is the main role of cosmic rays?


please give me the answers


sunil deshpande

sunildeshpande@rediffmail.com

[StarLab]

I'll be glad to field some of these questions for you:

Q2: Why is the sun red in the evening as compared to the morning? You must not be waking up early enough to find the answer out for yourself. :lol: ;)

Q3: Could we make all of earth's thunderbolts strike in the same area? We humans, even in the far future, would never possibly have control over the weather system. :( :ph34r: :o

Q4: Will Antarctica become a sea? What you are asking is if the inside will melt but the outside will not. No. The outer edges will always melt first, raising ocean levels, then maybe the ice covering the land itself may melt and drench the place.

[Josh]

G'day suntrack ...

A1: I don't really understand what you're getting at with this question. If you take an inert piece of mars and heat it by 50C then it'll .. get hotter I guess. Where are you wanting to heat this? what is it's starting temperature etc?

A2: The Sun will look redder at both the morning and the evening - just before sunrise and sunset. The reason for this is something called Rayleigh scattering. At those times when the sun is lowest in the sky, the distance the light has to travel from the sun to reach your eyes is at its greatest and has to travel through more of the atmosphere. A lot of the blue and violet end of the visible spectrum has been scattered and lost meaning that only the longer wavelengths (ie those closer to the red part of the spectrum) reach you. The result is that the sun looks more red at those times.

A3: As StarLab said, I don't think we'll be harnessing the power of lightning and thunder anytime soon. Would be good though!

A4: If all the ice on the antarctic continent melted there would be a lot of people in trouble. The seas would rise and cover a lot of pacific islands (for eg) completely while the rest of the lands would shrink with waterlines much more inland. I don't think it'll be happening very soon but we have to watch out how much greenhouse gases we put into the atmosphere. Another theory is that we are at the end of an ice age and the heating up of the planet is natural. If that's the case then the ice on the ice shelves and continents will melt away extensively if not completely with the same result as above.

A5: I don't think I know that they have a particular role that they play. they just are. Cosmic rays are high energy charged particles - either an atomic nucleus or an electron - moving at about the speed of light. They generally and traditionally mean those particles that originate from outside our solar system but can also come from the sun. Cosmic rays aren't "rays" either. When they were first discovered (one moment while I go look up by who ...) by Victor Hess they were assumed to be a part of the electromagnetic spectrum and hence called rays (like gamma rays etc). They were later found to be charged particles but the name remained. The only role cosmic rays have had (other than finding out where they come from) is in early high energy particle physics in a time long ago before particle accelerators were invented. You can read more about their interaction with Earth here (http://zebu.uoregon.edu/~js/glossary/cosmic_rays.html).

Hope that helped.

[Greg]

Maybe what he meant by the role of cosmic rays he meant the danger of cosmic rays. The danger to astronauts, both in space and on solid objects without a protective magnetic field to deflect them is very real. Just one 2 week shuttle mission the astronauts received I beleive it was the equivalent of 100 chest xrays of radiation. Extend that over a 6 month Mars mission and you can see the potential for problems. Placing adequate shielding on the spacecraft might add an intolerable amount of weight, limiting the scope of what can be done with the mission.

[StarLab]

True, but not if we can find a way to create a shielding that can stop most cosmic rays while being really lightweight.
But, inside the earth's magnetic field, are cosmic rays a problem? And if not, isn't the moon at least inside the the magnetic field? I truly do hope so...

[corecomand]

A1: depends on 2x2 what realy what scale 2x2 can mean a lot of things if you mean what would happen if we heated a large area of the the surface up it would raise the globle tempature some but not much and would have to be prolonged.

A3: now this is a simple one i doubt we would ever want to gather it all in one place but maybe someday it might be posible never say never. as for the short term we can already make it more likely for it to strike one spot over another in a very limited way so it may be posible to store some of the energy in the near future. i realy would not count on it as a replacement power source though.