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Nairaland Forum / Nairaland / General / Religion / Universal Laws - Externally Caused Or Product Of Chaos? (1898 Views)
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Re: Universal Laws - Externally Caused Or Product Of Chaos? by promise10: 11:50am On Sep 29, 2016 |
butterfly88:The MOST BEAUTIFUL CONCISE point I have EVER seen on NairaLand! Well analysed! |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by promise10: 11:55am On Sep 29, 2016 |
shadeyinka:His statement on speed of light is so absurd that it kept me thinking! It doesn't make sense at all! |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by raphieMontella: 12:22pm On Sep 29, 2016 |
lordnicklaus:ahk... Small small bots bannning me anyhow |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 1:13pm On Sep 29, 2016 |
raphieMontella: Sorry Bro! |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 1:16pm On Sep 29, 2016 |
promise10: You are right! A lot of people make discissions of exceedingly great consequences on half truths and half knowledge! |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 1:16pm On Sep 29, 2016 |
promise10: You are right! A lot of people make personal discissions of exceedingly great consequences on half truths and half knowledge! |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 1:22pm On Sep 29, 2016 |
ValentineMary: Light isn't caused by any fast moving photon. A Photon is: a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass. |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 1:28pm On Sep 29, 2016 |
wirinet: I better not learn your version of advanced Physics |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by wirinet(m): 2:09pm On Sep 29, 2016 |
shadeyinka:Gosh. Nigeria's educational sector has degenerated to such a level that a so called student of physics has no idea of the definition of Time, and is not able to learn. Once again; Time is a consequence of the relationship between speed and space , without space there cannot be time. In other words if space is zero, time is also zero. Furthermore at the speed of light, time becomes zero (from the view of a stationary observer). It is very sad, a so called physics student does not know or understand these simple facts. shadeyinka: Gosh, see more embarrassing ignorant rants. Who is talking about coulombic forces? you asked; What is the probability that an isolated electron and an isolated proton (assuming that only these two make up the H atom) would self assemble itself to form Hydrogen?and i told you that the force of gravity between the proton and electron alone will eventually make the two particles collide in a confined space (i have not even considered the electrostatic force between the proton and electron), and you are talking about coulombic force. On a nuclear scale, the proton is massive, it is over 1800 times more massive than the electron, so we expect the proton to have a huge gravitational effect on the electron. The sun's gravity affects planets and comets in the far reaches of our solar system and you do not think a proton would not have gravitational effect on an electron. |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by wirinet(m): 3:41pm On Sep 29, 2016 |
lordnicklaus:The heaviest naturally occurring element is uranium, anything heavier than uranium is man made (as far as we know). Polonium with an atomic number of 84 is lighter that uranium with an atomic number of 92. At the start of the universe there was only hydrogen and a little amount of helium. Hydrogen clouds coalesce together to form first generation stars. These stars consists mainly of hydrogen and a little helium. Through a process known as nuclear fussion, hydrogen atoms in the cores of these stars fuse to form heavier elements, ie hydrogen helium, lithium, beryllium, etc., up till uranium on the periodic table. These stars burn out fast and explodes in a supernova, spewing its contents into the universe. These newly formed heavier elements then mix with more hydrogen clouds to form second generation stars (solar systems). The sun and planets formed from such a gas cloud would contain heavier elements like metals, including polonium and uranium. These second generation stars are very stable and live very long life. 1 Like |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by ValentineMary(m): 4:15pm On Sep 29, 2016 |
shadeyinka:I totally disagree. Photons is the reason behind visible light. Electromagnetic waves and gravitational waves also travel at c. For something to move at this speed, it must be massless. Else the universe would not be able to provide such energy. I stand on what I said earlier that if there is a cause of speed of light (visible light) it is inherent in itself. And u disagreed to this point, now tell me what would cause this speed if not it's non interaction with matter due to it's massless nature ? |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by ValentineMary(m): 4:33pm On Sep 29, 2016 |
promise10:It does not make sense until u have a good knowledge on theoretical physics. |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by Nobody: 5:14pm On Sep 29, 2016 |
ValentineMary:Can visible light really be massless? The dispersion of visible light could probably be the random motion of photons colliding elastically with one another. The amount of photons in visible light should be its mass or do you think otherwise? |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 5:19pm On Sep 29, 2016 |
ValentineMary: I hear you! |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 5:30pm On Sep 29, 2016 |
wirinet: Just a little help! Time is a measure of interval between events. Without events, there will be no reference with which to measure time. Space cannot be zero! Black holes, Supernovae, Singletons all take place in space. A Singleton may have zero dimension, it doesn't mean that the universe also have zero dimension. All of us are still learning including me...I don't know half as much of physics than some guys I've met on Nairaland |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by Nobody: 5:36pm On Sep 29, 2016 |
shadeyinka: Very true brother, the universe itself is dependent on virtual dimensional quantities all caused by periodical effects of time. |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by ValentineMary(m): 9:54pm On Sep 29, 2016 |
lordnicklaus:Light is composed of photons, so we could ask if the photon has mass. The answer is then definitely "no": the photon is a massless particle. According to theory it has energy and momentum but no mass, and this is confirmed by experiment to within strict limits. Even before it was known that light is composed of photons, it was known that light carries momentum and will exert pressure on a surface. This is not evidence that it has mass since momentum can exist without mass. Sometimes people like to say that the photon does have mass because a photon has energy E = hf where h is Planck's constant and f is the frequency of the photon. Energy, they say, is equivalent to mass according to Einstein's famous formula E = mc2 . They also say that a photon has momentum, and momentum p is related to mass m by p = mv. What they are talking about is "relativistic mass", an old concept that can cause confusion Relativistic mass is a measure of the energy E of a particle, which changes with velocity. By convention, relativistic mass is not usually called the mass of a particle in contemporary physics so, at least semantically, it is wrong to say the photon has mass in this way. But you can say that the photon has relativistic mass if you really want to. In modern terminology the mass of an object is its invariant mass, which is zero for a photon. If we now return to the question "Does light have mass?", this can be taken to mean different things if the light is moving freely or trapped in a container. The definition of the invariant mass of an object is m = sqrt{E 2/c 4 - p 2/c 2} . By this definition a beam of light is massless like the photons it is composed of. However, if light is trapped in a box with perfect mirrors so the photons are continually reflected back and forth in both directions symmetrically in the box, then the total momentum is zero in the box's frame of reference but the energy is not. Therefore the light adds a small contribution to the mass of the box. This could be measured--in principle at least--either by the greater force required to accelerate the box, or by an increase in its gravitational pull. You might say that the light in the box has mass, but it would be more correct to say that the light contributes to the total mass of the box of light. You should not use this to justify the statement that light has mass in general. Part of this discussion is only concerned with semantics. It might be thought that it would be better to regard the mass of the photons to be their (nonzero) relativistic mass, as opposed to their (zero) invariant mass. We could then consistently talk about the light having mass independently of whether or not it is contained. If relativistic mass is used for all objects, then mass is conserved and the mass of an object is the sum of the masses of its parts. However, modern usage defines mass as the invariant mass of an object mainly because the invariant mass is more useful when doing any kind of calculation. In this case mass is not conserved and the mass of an object is not the sum of the masses of its parts. Thus, the mass of a box of light is more than the mass of the box and the sum of the masses of the photons (the latter being zero). Relativistic mass is equivalent to energy, which is why relativistic mass is not a commonly used term nowadays. In the modern view "mass" is not equivalent to energy; mass is just that part of the energy of a body which is not kinetic energy. Mass is independent of velocity whereas energy is not. Let's try to phrase this another way. What is the meaning of the equation E=mc 2? You can interpret it to mean that energy is the same thing as mass except for a conversion factor equal to the square of the speed of light. Then wherever there is mass there is energy and wherever there is energy there is mass. In that case photons have mass, but we call it relativistic mass. Another way to use Einstein's equation would be to keep mass and energy as separate and use it as an equation which applies when mass is converted to energy or energy is converted to mass--usually in nuclear reactions. The mass is then independent of velocity and is closer to the old Newtonian concept. In that case, only the total of energy and mass would be conserved, but it seems better to try to keep the conservation of energy. The interpretation most widely used is a compromise in which mass is invariant and always has energy so that total energy is conserved but kinetic energy and radiation does not have mass. The distinction is purely a matter of semantic convention. Sometimes people ask "If light has no mass how can it be deflected by the gravity of a star?". One answer is that all particles, including photons, move along geodesics in general relativity and the path they follow is independent of their mass. The deflection of starlight by the sun was first measured by Arthur Eddington in 1919. The result was consistent with the predictions of general relativity and inconsistent with the newtonian theory. Another answer is that the light has energy and momentum which couples to gravity. The energy-momentum 4-vector of a particle, rather than its mass, is the gravitational analogue of electric charge. (The corresponding analogue of electric current is the energy-momentum stress tensor which appears in the gravitational field equations of general relativity.) A massless particle can have energy E and momentum p because mass is related to these by the equation m 2 = E2/c 4 - p 2/c 2, which is zero for a photon because E = pc for massless radiation. The energy and momentum of light also generates curvature of spacetime, so general relativity predicts that light will attract objects gravitationally. This effect is far too weak to have yet been measured. The gravitational effect of photons does not have any cosmological effects either (except perhaps in the first instant after the Big Bang). And there seem to be far too few with too little energy to make any noticeable contribution to dark matter. www.desy.de/user/projects/Physics/Relativity/SR/light_mass.html |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by raphieMontella: 10:00pm On Sep 29, 2016 |
shadeyinka:thanks man those botss can be annoying fa'! |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by RosaConsidine: 1:04am On Sep 30, 2016 |
shadeyinka: Actually, in theoretical physics, space can be zero. Of course, in practical physics such an event can't be created. Even singularity has a space value of 1 so practically, space can't be zero. However, his point was that if space WERE zero, nothing else would exist, including time and the event intervals it measures. All events occur within space so whenever space went from zero to any value more than zero, time started. |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by Weah96: 2:00am On Sep 30, 2016 |
lordnicklaus: Something(s) or someone (people) precipitated the reaction which led to the formation of the universe. I believe that they were smaller prexisting particles which inhabit everything we see or know. These particles are intelligent in a way that sober/conscious humans can never understand. I'm accepting suggestions. Where did the small particles come from? How tiny can a subatomic particle get? Is there an infinite regression in particle size ? |
Re: Universal Laws - Externally Caused Or Product Of Chaos? by shadeyinka(m): 10:33am On Oct 01, 2016 |
RosaConsidine: Thanks for the post. In pure mathematics, any assumption could be valid but in physics, assumptions are constrained by existing laws and observation. With this in view, I find it impossible for someone to say that space is zero (or even assume that space is zero in the universe). To me, I see either an empty space or a completely filled space. In mathematics space could be zero In physics, can space be zero? |
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