Yes, entropy is a measure of the amount of heat in a system that is not available to do work. If you have a closed box with two beakers of water, one hot and one cold, you can do work as the hot beaker cools down and the cool beaker heats up. The entropy of the system is the temperature of the cold beaker times the mass of both. When they end up at the same temperature (equilibrium) the entropy is the absolute temperature of both times the mass of both. That number will always be higher than the first number and no amount of machination can change that unless you can make time go backwards.
Nicely put. Imagine if energy from the colder beaker did actually transfer to the hotter, then the entropy of both the system and the universe would decrease. But this never happens, hence the 2nd law always works in closed systems.Yes, entropy is a measure of the amount of heat in a system that is not available to do work. If you have a closed box with two beakers of water, one hot and one cold, you can do work as the hot beaker cools down and the cool beaker heats up. The entropy of the system is the temperature of the cold beaker times the mass of both. When they end up at the same temperature the entropy is the absolute temperature of both times the mass of both. That number will always be higher than the first number and no amount of machination can change that.
The physicality of the egg itself, its very existence including the potential embryonic material inside it, comes from the biological processes inside of the chicken.The egg came first. All mutations occur at the moment the two strands of DNA are joined, this can only occur inside an egg at the moment of conception. Chicken has nothing to do with it.
"Neither space nor time have any physicality . . ."Because as Einstein said... Nothing can happen until something moves. Having a somewhere where something can move is an essential component of
reality. Motion is a simultaneous progression through space and time (space-time) so the somewhere required is space-time
Neither space or time have any physicality, because they are concepts, but when combined in a single phenomenon which we call the space-time continuum, they can be the cause of physical effects. Temporal progression, (or time as we usually refer to it, ) by its very nature, progresses... That progression can be outward from a point which is expansion. (The phase our universe is currently going through. ) or, in a universe which has already reached the limit of possible expansion, the progression is from the outer limit of the expansion, toward the origin of the expansion, I.E. the singularity. the progression of time alone would be meaningless, but because time alone, cannot exist, the three dimensions of distance, AKA space, which along with time make up the space-time continuum, must also progress. that progression of distances mirrors the progression of time in either direction, resulting in either an instance of expanding or an instance of contracting space-time
Non physical concepts such as space and time don't need a pre existing time or place to exist within, together they make up their own time and place, so , as with virtual particles can likely pop into and out of existence spontaneously
I'm not a betting man, but if I thought I would live long enough to claim my winnings I would wager that dark energy is an effect of time. However, proving that it is, will make the search for the Higgs boson, seem like a Sunday morning stroll in the park.
To clarify! The "egg" I mention simply represents all eggs everywhere and everywhen, inclusive of simply formative beginnings. To clarify! The "chicken" I mention simply represents all life everywhere and everywhen, inclusive of all cellular-like universes. Sheesh! We will part ways from here on. Live long and prosper.To clarify, egg came from a bird that was not a chicken. Sperm came from another bird also not a chicken. The first chicken emerged into the universe as an egg created from two non-chicken objects.
I agree with time progressing in one direction, meaning that the arrow of time is irreversible, but as both Einstein and Makowski said we must stop thinking of space and time as being separate phenomenon. In reality they form a single phenomenon known as the space-time continuum. Our universe, which is also our reality, is currently going through a phase of metric expansion and as our universe gets more voluminous, things within it get more dispersed, which sounds very much like entropy to me. If the expansion of our universe stopped and it entered a phase of contraction, all that the universe contains would come back toward the point from which it originated ie the singular event, or as most people know it the singularity this sounds very much like neg entropy to me.
If you were making a return journey to the moon you would be going forward on the outbound leg and also forward on the return leg, so time still elapses normally regardless of the direction through space taken, and unless Einstein got it wrong the fabric of spacetimeis not rigid, it can be curved stretched compressed or expanded, with gravitation being an end result.
I am familiar with the text book explanation, or should I say"non explanation" of the cause and nature of entropy, But as with the nature of the proposed singularity which supposedly initiated the evolution of our universe it doesn't stand up to scrutiny.
Thanks, I will certainly check it out. There is a library just two hundred yards from my doorstep, I doubt they will have it in stock, but they will get it for me within a few days, (and all for free.) I have watched some of his videos and found him to be very good at explanations. so I will look forward to reading itI was led to this book by sam85geo on Forum Feedback, 'Quantum Entanglement - Possible on the Macro Level' and though I am only part way through it, so far, I'm finding it a terrific read. To the point I also recommend it highly:
Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime, by Sean Carroll.