I was looking up the definition of heat conduction, but every website has a different answer. In addition to several different answers, some seemed wrong, or at least oversimplified.
Conduction transfers heat via direct molecular collision. An area of greater kinetic energy will transfer thermal energy to an area with lower kinetic energy. Higher-speed particles will collide with slower speed particles.
This transfer occurs at the molecular level—from one body to another—when heat energy is absorbed by a surface and causes the molecules of that surface to move more quickly. In the process, they bump into their neighbors and transfer the energy to them, a process which continues as long as heat is still being added.
However, I have the understanding that atoms and molecules never come into contact with each other. Nothing truly touches.
What am I missing here?