Yes, but what was your initial point? That heat travels equally in all directions?
But we knew that, and it was already mentioned how a heat pipe works in the article I posted. I thought you had a point to make, but perhaps I'm missing something.
Inside the container is a liquid under its own pressure, that enters the pores of the capillary material, wetting all internal surfaces. Applying heat at any point along the surface of the heat pipe causes the liquid at that point to boil and enter a vapor state. When that happens, the liquid picks up the latent heat of vaporization. The gas, which then has a higher pressure, moves inside the sealed container to a colder location where it condenses. Thus, the gas gives up the latent heat of vaporization and moves heat from the input to the output end of the heat pipe.
After that repeat indefinently/\\
Simply put. The capillary is a dense metal mesh, it has a lot of little pores in it (dhurr, its a mesh). The liquid is absorbed there. When it heats up, the liquid evaporates. So the liquid closest to the heat-sink evaporates. The vapor creates pressure, and travels to the coolest point, as it does this it displaces the water in the capillary down back to the heat-sink. When it reaches the coolest point it goes back to liquid state, and into the mesh. This whole cycle repeats. Now if the capillaries aren't high quality, the pressure that the heat produces, does not help to much with the movement of water inside the capillaries. When that happens it relies on gravity to pull the liquid down trough the capillary and let the heat rise up so that it can cool.
If you don't have a high quality heat-pipe, that use a good wicker structure (capillary structure) than you are relying heavily on gravity to keep the cycle going.
Heat pipes work on pressure, but those are high quality, high built and not mass-produced. What we have are more to the end of the rope coming form heat-pipes, and when something is really good, we pay for it (one of vf900 that I bought cost more than what I payed fro my SI-120, witch has 5 big and 2 small heat-pipes, not just 2.)
Off-topic, I see that you too appreciate what a monster that Amanda cooler is. With the money I spent on this crap... Arggh.