I was intend to check this-out "How does the heat travels".... When I give this phrase in google there were good direct proper results, few pages of NASA... and some properly explained pages...
I was interested to study this out, because I had a doubt raised in my mind when I saw, Al'gore presentation about global warming, he presents by depicting heat as a man, travels from sun to earth, wherein there exist matter less space in mid.
And he says further, when the heat entered reflects back as Infrared from the ground of the earth, because of CO2 presence the heat wasn't able to get out from our atmosphere and that's how the Global Warm increases tremendously in the last 15 years as CO2 presence was drastically increased in our environment in the last decade. He says the further threats, that the snow and glacier rocks may diffuse and can affect the hot and cold water flow in the sea and can increase the sea-level.
Coming to the point, the heat travels by three ways, conduction, convection and radiation
Conduction - This way of heat transformation happens in the solid objects.
Convection - This way of heat transformation happens in fluid and air. When we boil water before we take bath, this is what happens. It transfers the heat from warmer side to cooler side in the opposite direction of gravity.
Radiation - This is the way we are getting heat from our nearest natural resource - sun. It says the rays fall on electro-magnetic spectrum range [X-Rays, InfraRed, Light, Ultra-violet, Micro Waves, Radio] can heat an object. It happens by induction*. Even the visible colors spectrum falls on this range.
It clears me the other doubt too, US and even our country launches many satellite that goes totally out from our atmosphere, U.S. stretched upto Saturn (Cassini), and India now started with Chandarayan-I. So using these kind of waves fall on electro-magnetic spectrum, on certain frequency, these satellites communicates the local space station on earth. So it happens by induction*. That's how they communicate even though there is Matter Less space in mid. One amazing thing is that, sometimes cassini has to communicate to earth, intruding sun, if the saturn lies on the other half.
The following web pages can give good context of how heat travels/move...
http://coolcosmos.ipac.caltech.edu/cosmic_classroom/light_lessons/thermal/transfer.html
http://www.qrg.northwestern.edu/projects/vss/docs/thermal/1-how-does-heat-move.html
http://science.hq.nasa.gov/kids/imagers/ems/visible.html
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Anand
anand.sadasivam@googlemail.com
*I've used the term induction even though it all propagate like waves, as I think some matter is required for any vibration (or waves or rays) to pass through. Hmm!! Maybe rays could be the right term, sounds like doesn't require any matter.
3 comments:
LHC - Higgs...
LHC stands for the Large Hadron Collider. It is one of the big collider ever built in the history. It is located in Geneva. Somewhere in the Swiss and France border. It is about the length of 27 kilometer circumference pipe 100 meter below the earth. In that the particle forced to travel in the speed of light in the opposite direction to each other and collided. It uses millions of components, magnets, computers, four main detectors. Fermilab, Chicago does the research over the collision at LHC.
The last big-bang test conducted by CERN at the LHC, the took two protons from liquid helium and collided. Mainly to investigate about the universe. As proton is a composite particle it yields many sub particles. In LHC they going to see those particles and its movements. And the connection between each other. By which they analyze some of the mystery of our universe and can overcome the bad mathematics.
Hadron era is the initial stage of our universe after the big-bang. This is what now scientists simulated in LHC. As per big-bang theory, it is believed that there weren't four different forces. Entire matter was made of similar fundamental particle twice the dense of our current matter. Has one positive charged particle and one negative charged particle around. When gravitation and strong force went out of the union, the big-bang had happen. And the universe starts grow and matter of different kind we see today are formed.
One of the first task they took is to find the Higg Boson. Higgs paticles are named after Peter Higgs. As per his theory entire universe is made of particle, there is no place called vacuum. It has higgs field in which objects are strongly interacting to each other. He proven his theory, as electro weak theory obeys his formulaes. He says strong-evident of this particle and further approximation to his formulaes will give right calculation of its mass and it's behavior. Here boson means the force. I'm not sure will it have mass or not. All they do is to point single needle out of 1000's of particle made by collision. So I think they trying to prove as if it has some mass. Scientists says Higgs as a God's particle. Means it can form a matter from almost nothing or by taking some anti-matter like positron or the reaction induced by it. There is one video presentation in YouTube which says something about Prime Matter. Hearing that will help to understand how the particles made the atom.
So far the understanding of the proton, it has three quarks, two top quarks and one down quark, or it sometime the charm/strange quark. Quarks are responsible for the strong force, it has color charge. When quarks interacts each other, Gluon formed. Gluon is one of the strong force particle and it has color charge. And now they are trying to find out Higgs after Gluon.
I came across some of the video session over the net. As per that testing Anti-Matter/Dark-Matter particle in vacuum is highly dangerous. The existence of this particle doesn't make much difference in vase open place i.e., the place in between two galaxies.
My English is little poor. I was trying to mention matter less place. I just used the term anti-matter, thinking it means the matter less place. Later I've added dark-matter thinking again it says about place without the matter as color going black all the time. Still I am not finding the right term to mention matter less place. All I found is the research happening in LHC about the Higgs particle.
Does heat travels really?
Thanks for Mr.Lyudmil Antonov giving me the idea whether heat travels really.
Actually heat doesn't travel rather it transforms it's source of energy in the form conduction, convection & induction.
Heat is some sort of Atomic Resonance that gets transformed to the Atoms nearby in one among the above ways.
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