[timer]

Ok, You're getting there. Time is delta Kinetic Energy(the variable rate of Potential Energy release, or, the First Law of Thermodynamics)is mass(either inertial mass or gravitational mass). Now the quantum LEAP : t=dKE=m=(W>P or W<P), where W is the MATTER WAVELENGTH and P is the FERMION PARTICLE VELOCITY. Probably no one has ever told you this before. Light is both particle(photon)and wave(electromagnetic wavelength). Matter, ie, fermions, ie, the electrons, protons, neutrons that make up your body, as particles; are also WAVES(originally called MATTER WAVES or DeBroglie waves). Soon after Einstein's great triumph of the Eddington eclipse photographs which proved gravitational lensing(starlight bent as if passing thru a lens when they passed close to the sun during a lunar eclipse), Louis DeBroglie, a French physicist said : Ok, if light is both particle and WAVE, why shouldn't MATTER also be WAVE as well as particle. He published his theory in 1922. Lambda(symbol for matter wavelength) was to be h/mv and speed of wave crest U=c^2/v. Almost immediately the Einstein Relativists went BALLISTIC, the waves that accompany fermions(they weren't called fermions then, that came later)travel FASTER than the speed of light(c). You know what hit the fan! So, Davisson and Germer, at the Bell Labs in 1926, were shooting electrons, from an electron gun, directly at the face of a pure nickel crystal. Instead of bouncing off at random angles they bounced off at about 50 deg from the normal(perpendicular)angle. Thus a great AHA moment in physics : the lattice of the nickel crystal was acting as a diffraction grating for the electron's MATTER WAVES. Thus was QUANTUM MECHANICS, along with the quantum, h, BORN. E=mc^2=hw is the equation that equates relativity and quantum mechanics. Sooo, now the relativists were in DEEP do-do. Here U=c^2/v means that a fermion's matter wave travels FASTER than the speed of light...soooo...they came up with this hokey phase/group explanation : you blink your eyelid in .1 sec, a virtually infinite # of phase matter waves come in from beyond Pluto's orbit(from +inf to -inf) at 9x10^16km/sec or less, cancelling everywhere except at a GROUP of waves at your eyelid that matter-wave-define the wave energy of your eyelid(at less than c). Have you ever heard of any screwier idea than that? Blink your eyelid and waves from BEYOND PLUTO'S ORBIT rush in to wave-define your little ol' eyelid. PURE BS! What they got wrong was c^2...is it an area, which means mass as in mv^2/2 or as a line, which means momentum as in mv? Ok, then, absorb this and soon enough I'll explain why that second question about infinity and this, has to do with UFOs jumping around the universe at 105 seconds(earth normal)per light year(and its been right there in physics for EIGHTY YEARS!). W=P

[subversion]

I agree that time equals a change in kinetic energy. Obviously time equals a delta anything. But wouldn't a change in kinetic energy equal a change in mass (or a change in speed), as opposed to just mass itself?

[Guille]

but, iosn't mass stable. I mean, it can't be created or destroyed, so, you can't say a change in KE is a change in mass because that is saying that when I run in my tennis class half hour ago, I was gaining mass. I know that if I ahve more energy I have more mass, because actually energy and all it's manifestations have mass, although very litle.

[timer]

Yes, t=dKE=m or time is the variable delta rate of kinetic release from some potential energy source which is either inertial mass or gravitational mass. Note: I'm finding out that "quick reply" drops whole sentences. More later if you are interested...

[subversion]

Originally Posted by <<>>

but, iosn't mass stable. I mean, it can't be created or destroyed, so, you can't say a change in KE is a change in mass because that is saying that when I run in my tennis class half hour ago, I was gaining mass.

energy (i.e. kinetic) is equal to mass times the speed of light squared. I don't think the speed of light is changing, so I guess a change in energy must mean a proportional change in mass. So when you run in tennis class you are gaining mass.

[timer]

Yes, you do increase in mass by m/(1-v^2/c^2)^1/2 becoming "infinitely heavy" if you're moving at 3x10^8km/sec or c on the tennis court. Do you move THAT fast? They must call you SPEEDY GONZALEZ... Anyway, the equation that relates relativity with quantum mechanics is E=mc^2=hw where E is the total potential energy of the mass(m) multiplied by c^2; h is the quantum and w is the DeBroglie wave number. At lower energies we have momentum = mv and mass = mv^2/2. Note that mv^2/2 is an integral of mv, or mv a derivative of mv^2/2. Here then is the "trick" : what is the "other v" in mv^2/2? ans : its the(matter)WAVE energy vs the(fermion)Particle velocity. Note here that by wave I do NOT mean electromagnetic waves(light, radio, x-rays, etc)as the EM wavelength applies to BOSONS. DeBroglie matter waves are the other half of FERMIONS. Bosons obey the rule : for n number of bosons in a given state, there is an n+1 enhancement factor for the next boson to join that state. This is the atomic basis for LOVE. You see it in lasars, gravity, mesons, "birds of a feather flock together". Fermions obey the Pauli Exclusion rule : no 2 electrons in a given atom can have the same n,l,m or s number. Thus chemistry, uniqueness, HATE, virtually all the world around you(no parking signs, "turf", trees spaced out in the forest, people with unique names/DNA, etc, etc, etc)is governed by the Pauli Exclusion Principle. Bosons are interger spin(-2, -1, 0, +1, +2...)whereas fermions are half interger spin(-3/2,-1/2,+1/2,+3/2...), BUT fermions LIKE/LOVE to bose-bond(even though fermi electrons violently repel each other at close range, like charges repel). 1F+1F=1B or spin 1/2+spin 1/2=spin 1(2 additive electrons are sort of like bose-light). Thus you have this bose-bonding going on in atoms(2 electrons=helium, a bose-happy-in-itself noble gas; another 8 electrons in the second shell = neon, another bose-happy-in-itself noble gas). And so on. Now, gravity itself is bose-bonding fermions in a capacitance well(called a gravity well by relativists, you know, the cannon balls rolling around on a rubber sheet depiction). But I'll leave that for another missive, right now I'm SORE(PE depleted)from running a roto-tiller all day(bucolic JOYS = a HOT BATH).... W=P

[Guille]

Originally Posted by subversion

energy (i.e. kinetic) is equal to mass times the speed of light squared. I don't think the speed of light is changing, so I guess a change in energy must mean a proportional change in mass. So when you run in tennis class you are gaining mass.

o, yes, I didn't realise that. I was actually thinking in F=ma not in E=MC^2, but I did mea the second one. thanks.

And yes, I do move as the speed of light playing tennis, they call me "the light rocket" but in spanish. I never loose.

[timer]

There is even a song : ROCKET MAN...so you're "rocket man" from now on... Ok, take your tennis ball, or baseball(some small, dense object); and toss it back and forth between your hands. t=dKE=m=(W<P or W>P). not-t=PE=M=(W=P). As you ACcelerate the ball you have incresed the velocity(dPv)but NOT the corresponding matter wavelength(dWs). Thus you HAVE to increase BOTH to reach that new, higher dual energy state of the ball. Thus the back drag or resistance that you call inertia is that under running dWs; but you don't feel THAT, your throwing hand is actually DEcelerated(W>P)as you ACcelerate the ball(increased dWs). Its action=reaction(Newton's Law). You DON'T feel/sense/detect the dWs going INTO the ball, that would violate the First Law of Thermodynamics : energy can never be created or destroyed, only transferred. When you stop ACcelerating the ball it immediately goes into a momentum state(W=P)but being in a 1g gravity field it goes thru a parabolic arc, falling at 9.8m/s. Gravity then is a bose-bonding capacitance of over running MATTER WAVES, bose-bonding distant fermions(1F+1F=1B). When you catch the ball the situation reverses. Now the Pv decreases and so the dWs, the over running matter waves(in newtons of wave force)is the IMPACT energy. What you invested in W>P acceleration(actually deceleration of your throwing hand)comes back out as W>P in deceleration. Thus deceleration and gravity(and gravitational weight)is the same thing : OVER RUNNING MATTER WAVES. Clear as mud?

[Guille]

as we say in spain, you could say it louder but not clearer. it is actually very common to say it.

[AntonioLao]

Originally Posted by GUILLE

what is the diff between absolute time and normal time?

This is a belated answer to your question. Newtonian absolute time does not exist. But a proper time using special relativity is the time that an observer sees on the clock if both the observer and the clock are at rest with respect to a given inertial frame of reference. The GPS satellites are not in the same inertial frame as a person on the surface of the earth, therefore the time person sees on his wrist-watch is different from the time inside the satellites. This different has to accounted for before the GPS can do precise triangulation in measuring distances.