Seedling
Well-Known Member
Thats a chemical reaction too. burning trees etc .... and where did I mention Entropy?
Chemical reactions can produce heat without your presence, correct? You can't talk about heat unless you mention entropy.
Thats a chemical reaction too. burning trees etc .... and where did I mention Entropy?
Temperature is relative to the individual experiencing the temperature change.
Temperature exists whether there is an individual there to experience it or not.
Temperature is relative to the individual experiencing the temperature change.
Chemical reactions can produce heat without your presence, correct? You can't talk about heat unless you mention entropy.
Sorry Yes . But I never mentioned Temperature, I said heat. Theres a subtle difference you know.Temperature exists whether there is an individual there to experience it or not.
'Heat' as we experience it is simply IR.
What makes it become 'Heat' is our subjective experience.
Temperature exists whether there is an individual there to experience it or not.
Again, you insist on saying there is no heat without experience, which is simply false. Lava changes trees into ashes whether there is someone there to experience the heat or not.
In a world populated by Robots, They will never feel HOT (Heat) but they can MELT (Temperature)
Heat is energy transferred from one system to another by thermal interaction. In contrast to work, heat is always accompanied by a transfer of entropy. Heat flow is characteristic of macroscopic objects and systems, but its origin and properties can be understood in terms of their microscopic constituents.
AGREED ... but that's Temperature. ... as measure in Kelvin or whatever. The heat is what a brain perceives.
The heat is what a brain perceives.
Wrong! Heat exists in the absence of a brain.
I have 20 minutes left of the film Looper. Will get back on this one.
This is what we called half baked, and we didn't need heat to get it there.
My movies not done yet but I just had to reply.
Thanks for the source. >>>
Usage of words
The strictly defined physical term 'quantity of energy transferred as heat' has a resonance with the ordinary language noun 'heat' and the ordinary language verb 'heat'. This can lead to confusion if ordinary language is muddled with strictly defined physical language. In the strict terminology of physics, heat is defined as a word that refers to a process, not to a state of a system. In ordinary language one can speak of a process that increases the temperature of a body as 'heating' it, ignoring the nature of the process, which could be one of adiabatic transfer of energy as work. But in strict physical terms, a process is admitted as heating only when what is meant is transfer of energy as heat. Such a process does not necessarily increase the temperature of the heated body, which may instead change its phase, for example by melting. In the strict physical sense, heat cannot be 'produced', because the usage 'production of heat' misleadingly seems to refer to a state variable. Thus, it would be physically improper to speak of 'heat production by friction', or of 'heating by adiabatic compression on descent of an air parcel' or of 'heat production by chemical reaction'; instead, proper physical usage speaks of conversion of kinetic energy of bulk flow, or of potential energy of bulk matter,[SUP][44][/SUP] or of chemical potential energy, into internal energy, and of transfer of energy as heat. Occasionally a present-day author, especially when referring to history, writes of "adiabatic heating", though this is a contradiction in terms of present day physics.[SUP][45][/SUP] Historically, before the concept of internal energy became clear over the period 1850 to 1869, physicists spoke of "heat production" where nowadays one speaks of conversion of other forms of energy into internal energy.[SUP][[/SUP]
I understand what you are getting at. In what way is this information useful to me though? Yes, my perception of heat is solely based on my experiencing it; however it has no bearing on anything, does it? The production of the heat still occurs, regardless of my ability to recognize it as such. What part of this am I missing?