Time travel - Speed of light

Science & Technology Science & Nature
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Re: Time travel - Speed of light

My recommendation

In Search of Schrödinger's Cat: Quantum Physics and Reality

by John Gribbin

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Re: Time travel - Speed of light

Peace TLK

Spin is just a convenient metaphor for two essentially same particles with the same charge and same mass but different behaviours when in collisions, because it was hard to establish why. The need for another characteristic had to be developed, they called it spin as the model of spinning spheres do different things when spun at different speeds.

Clockwise and Counter-clockwise only fits spherical models that have established north and south poles, I think spin actually refers to angular mometum not direction. Direction is analogous to charge from what I remember.

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Re: Time travel - Speed of light

Psyah .. thanks ... you are right .. they just used the term spin for the lack of better term

Great man .. I like your input bro .. thanks again

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Re: Time travel - Speed of light

Quantum: A Guide for the Perplexed and Black Holes, Worm Holes and Time Machines are both by Jim Al Khalili and both do a great job putting Quantum Mechanics down to the level of an 11th grade High School kid.

Schrodinger's Cat is actually a little outdated. Gribbin wrote the first one in 1984 and the second one "In Search of Schrodinger's Kitten's" in 1996. In contrast Al-Khalili wrote his in 1999 and 2003 respectively.

** What Do U Want To Do B4 U Die? **
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Re: Time travel - Speed of light

Short discussion on how photons can travel so fast.

In one experiement it was intended that radiation could turn a device that essentially looked like a windmill, but the panes were traverse orientated. One side of each pane was coated black and the other side silver. Due to the concept that had been established that photons are of zero mass, the experiment was intended to demonstrate thrust from heat being emitted from the black regions to make the mill spin in a direction that went towards the silver sides and away from the black sides. It turned out that the mill spun the opposite way.

The heat being emitted was not enough to compensate for the light "pressure" being exerted in the opposite direction. This indicated that light has a Newtonian pressure i.e. momentum. mass x velocity. But this causes problems with the equations that suggest photons are of zero mass.

The Einsteinian equation of Special relativity help out.

Mass expansion occurs when objects travel near light speed just as lengths contractions and time dilation. The equation for mass expansion is :

m = m0/(1-(v^2/c^2))

This is m0 is the mass of an object where it relative speed to the reference is zero. m is the resultant mass of that same object when it travels at speed v. c is the speed of light.

According to this equation as v tends towards c the value (v^2/c^2) tends to 1 making the denomenator to the equation tend to zero. It makes the m on the left tend to infinity as TLK or someone rightly said above, but if the m0 is itself zero in the case of the photon ... then we can obtain a tangible m value ....

That tangible m value is the effective mass of the photon for the momentum experienced and links with Newtonian laws.

Therefore here is a hypothesis I have come up with it may already be out there ... may be the mass of a photon is not zero at all. May be when it comes to rest its mass is continuously tending towards zero defying our detecting equipment because it 'does not want' to maintain a stable mass when stationary but assumed a stable mass only when moving.

Written here first!

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Re: Time travel - Speed of light

i disagree.

a miracle is not against the laws of nature. it might not be explainable by the laws of nature, or those thought to be laws of nature, at the time of the occurrence of the miracle, but it nonetheless obeys the laws of nature. This belief follows from the proclamation that God is all knowing, thus the laws He has created are all perfect and need no altering in order for God to show a certain sign.

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Re: Time travel - Speed of light

Peace chacha_Ghalib

With due respect you only disagree because of the stance instigated by your specific branch.

Gravity is not explanable by the laws of nature and when an apple is dropped it obeys it. The difference between a miracle and a readily occurring natural phenomenon is that:

1) Miracles always happen in times of need, but natural phenomenon are not governed by this criterion.

2) Miracles are 100% unpredictable, not at the time and not ever.

3) Miracles have never and will never be solvable with science, it is not to say that similar acts cannot be performed, but science will never be able to solve such miracles as:

a) Splitting water by a mere tap of the stick
b) Dropping of dates by a mere hand on the base of the trunk of a date tree
c) The Qur'an
d) Fire not burning a human engulfed in the flames when he has no special protective clothing or barrier.

4) The times of need are of two types:
a) Mortal Danger of a true slave of Allah (SWT)
b) To provide support or evidence of prophecy and guidance

Cheap tricks or trickery or anything undertaken to subdue and strike terror in to people is nothing but sourcery, it is based on deceptive methods and can be explained by scientific means or by a predictive set of processes, such as the uttering of incantations and acts involved in diverting the targets.

God is indeed All Knowing and this does not diminish the fact that He is also All Knowing of all Miracles that are and that have to be bestowed on the hands of His servants.

If natural hidden laws are the explanation to instances of 'miraculous' work you believe in such as 'virgin birth' then by that token the same argument of natural hidden laws can be applied to the instances of 'miraculous' work that you do not believe in such as 'the ascension of Jesus Christ (AS)' ...

~~~ Missing someone ~~~
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Re: Time travel - Speed of light

life in hell /jannat is the permanent one according to Muslim beliefs
so when this earth n universe will come to an end , the time will automatically stop
as we wont grow old

thats what i can assume from the lil knowledge i have:hmmm:

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Re: Time travel - Speed of light

Growth of our body is not the only indication of the flow of time. Our memory is also an indication that time has passed. We remember what happened in the past and move into the future based on that knowledge.

Like every morning when you get up, you do remember your Job location, your car, your parents, kids, brothers and sisters

In Jannat, as well as in Jahannum, time would flow, as we would remmeber things that would be happening to us over there,

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Re: Time travel - Speed of light

The only way to go faster than light or time travel is to break the laws of physics, that is by bending space and time, wormholes or creating blackholes

Yes i have a problem even now....
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Re: Time travel - Speed of light

^^ Bending space and time or creating wormholes and blackholes are well with in the laws of physics, you dont need to break them.

Problem is not if Physics allows that to happen, cause it does. Problem is that we dont have technology to do such

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Re: Time travel - Speed of light

dieting?

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Re: Time travel - Speed of light

If you believe time travel would ever be possible,
then also believe, I am from future, just visiting.

Uss nay mujhey chor diya