Heat sensors are good but can give false positives if there is a sudden change in ambient temperature.
They detect heat
Since that's what heat is (the motion of atoms), how better to transfer than by random collisions? yes.
In sensory function, sensation may be described as somatic. The somatic sensory system incorporates the sensations of heat, cold, touch and pain.
Well when you observe brownian motion you can feel the heat and so the theory was developed from the temperature of the heat :) hope I helped
Sensory receptors provide the connection between the stimulus such as heat, cold, and pain and the CNS.
Heat.
No, heat is the kinetic energy of molecules, the further apart they are the more difficult it is for them to hit one another so as to pass on the motion energy.
Yes, the amount of heat in a substance is related to the motion of its molecules. Heat is a form of energy that corresponds to the motion of molecules within a substance. The more heat a substance has, the faster its molecules move.
They are specialized cells that respond to stimuli AND energize nerve cells that send data to your brain. As to what kinds there are: they include heat and cold (that's two seperate types) touch and pressure, piloreceptors (motion of the hairs on your skin).
Kinetic theory and Heat transfer are both in motion, in Kinetic theory all states of matter are in vigorous motion and Heat transfer is associated with the motion of atoms or molecules.
Arthropods with antenna use them for sensory functions, and commonly for the chemical sense (smell and taste). Antenna function differ for various species but often include detection of motion (vibration), touch, and heat.
Heat is molecular motion; the units are BTU and calories.