There are many approaches toward understanding the phenomenon of time. We perceive time as past, present and future.
In physics time plays a major role in measurement of motion and forces. Einstein’s relativity introduced the concept of slowing of
time in motion and gravity which have been precisely confirmed.
http://www.wired.com/2010/02/what-is-time/
http://www.timephysics.com/
http://www.thekeyboard.org.uk/What%20is%20Time.htm
Dear Colleagues,
Good Day,
This is very interesting quotation:
"More powerful than all the armies of the world, is an idea whose time has come."
........Victor Hugo
Dear Colleagues,
Good Day,
This is very interesting quotation:
"More powerful than all the armies of the world, is an idea whose time has come."
........Victor Hugo
Dear friends, there are similar questions. Read 156 answers to 'What is time?'
I may say TIME is one of the fundamental units to measure our universe (and our lives in it). For a physicist, or a scientist, "A set of fundamental units is a set of units for physical quantities from which every other unit can be generated. In the International System of Units, there are seven fundamental units: kilogram, meter, candela, second, ampere, kelvin, and mole."
https://www.researchgate.net/post/What_is_Time
https://www.researchgate.net/post/What_is_exactly_time
Dear Dr. Ahmed El Tayyan
I am not asking about the most obvious meaning of TIME , I am asking on these aspects:
1) How does time flow?
2) Does time flow in only one direction?
3) Is there a constant 'Universal' time?
4) Is time a 'real' dimension? What does this all mean?
How others look at TIME, such as GOD, Scientists, normal persons, etc etc
Dear @Hazim, thanks for sharing the question on time. I have entered some threads before which dear @Miranda has brought to our attention. Let me bring some more threads on this issue as they have so many good answers! Regards.
https://www.researchgate.net/post/What_is_time
https://www.researchgate.net/post/A_question_on_Time_as_an_emergent_property
https://www.researchgate.net/post/Why_is_time_relative_rather_than_absolute_Is_there_a_theoretical_reason
https://www.researchgate.net/post/Is_the_flow_of_time_an_illusion
@ Dear Dr. Ahmed El Tayyan
"People like us who believe in physics know that the distinction between the past, the present and the future is only a stubbornly persistent illusion"
------- Albert Einstein.
Every event in time has a place like feeling to it, giving support to the block universe view of time in which time is fixed and laid out like a time-scape. In the block universe past, present and future exist together superimposed in different dimensions. This view of time suggests that dinosaurs are still alive and roaming the earth in other time dimensions; so are multiple copies of us and the whole universe. This view is reinforced by Einstein’s General Relativity (GR) in which time extends as the fourth dimension from the past to the future. Lack of simultaneity in Einstein's SR and an interpretation of the Lorentz transformation equation known as the Rietdijk–Putnam argument also promote this view to explain the Andromeda paradox as an alternative reality existing in a different time dimension.
Time in the block universe is laid out as time-scape similar to landscape; future and past already exists and there cannot be a free will. Even in the smallest duration of time in a block universe there should be infinite number of copies of everything including the whole universe. Block universe leads to a few problems and paradoxes.
Please, try and answer these questions regarding TIME:
How do we explain the origin of universe as all parts of the block universe exist all the time? If there is a big bang in block universe then even now it exists. If time-scape is already laid out then what causes us to move through this time-scape? How does our consciousness move across time? What makes it move and why we cannot willfully move it anywhere anytime?
Dear Colleagues,
Isaac Newton believed that time is continuous, and that it flows at an unchanging rate everywhere in the universe. This was accepted by most scientists until the Michelson-Morley experiment around the end of the 19th century, from which it was discovered that the speed of light is the same regardless of the direction of propagation, and regardless of the motion of the source. Albert Einstein considered this result an axiom, from which he derived the special and general theories of relativity. According to relativistic physics, the rate at which time passes depends on the relative motion between observers, and also on the strength of a gravitational or acceleration field.
Dear Prof. Ljubomir Jacić , Prof. Miranda Yeoh,
Thank you so much for sharing all that threads on this issue as they have so many interesting answers
Very good question.
Time is the only thing in this world that we can't store for future use. But you can use those to do whatever you like.
Remember simple mistake that you commit in terms seconds - sometimes you need to pay all your lifetime or even generations in some cases to compensate it.
Dear Pror Ronald - simple and nice answer
Instead of understanding about it - we need to think about how to use it effectively
The meanings giving to time is so diverse as its usage. Grossly, it is a measurement to define periods in which facts are observed by men. This empirical concept give us the certainty of something that we know it exists, but we have not much understanding of what it is and what it is not. Most of the opportunities we try to describe it, we tend to end up talking about other things or infering teachings for our own lives. But we get lost in our analyses. "It is time to go."
Time that begun since the beginning of the universe is a concept that enables us to observe and know how physical things, events, processes evolve or change. It is a right parameter or dimension to describe phenomena in the physical three dimensional Euclidean space in time to form space time as a four dimensional abstract space of existence.
It is because of time that we know how we are older now than last year, how the economy changes and what life will bring next year as we see the variations in each of these things.
Time is not a physical object and therefore nothing causes it to happen now but it is a necessary concept we introduced in order we have a right perspectives of things along the axis of time. Time begun as physical universe begun and will end when the universe collapses to nothing else it continues to exist as a necessary co-spacial dimension as long as the universe exists.
Einstein's theory of relativity is an interesting venue to see how the span of time can elongate or shrink based on the longevity of a phenomena observed in one state or form of existence. The 1 hour duration in unbiased state can be a two hour feeling of duration in a very bad circumstances and a 30 minute duration feeling in good circumstances - the concept of time in our brain regardless of the actual time length- a humorous description of the variability of the duration of time in the theory mentioned by Einstein himself.
Do you really think life will get less complicated later? Let’s get real. If you don’t have time for it now, you will not have time for it later. We have to create it. If it means enough to us, we can find the hours.
http://liveyourlegend.net/how-to-create-time/
Dear Prof. Umachandran
Good Day,
I really like your last thread :
http://liveyourlegend.net/how-to-create-time/
Especially this paragraph:
"Excuses are too easy to find.
Ask people why they aren’t doing something that truly matters to them and you’ll likely get one of two answers: Money or Time.
Both are excuses that can almost always be dealt with if you properly adjust your priorities."
Also, this part:
“Dreams without action stay dreams”
~Christine Pulley
Mother Teresa, once, said:
“Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.”
Dear Hazim,
As several colleagues say in RG, the theme of time has already been discussed extensively; anyway, I, once again, to state that our understanding of the concept 'time' is far beyond a simple physical formulation. By this I mean that time is something that is perceived, is known, is understood, is interpreted and is comprehended, exclusively, from the functioning of the structure of our psyche.
To avoid repeating what I ever said on the subject, I send part of Chapter 5 of my book "PSYCHE", where I try to explain the importance of time in our life, because it handles our biology, our psyche and our socio-cultural environment . (The book you can download from RG)
@ Kausel
Yes, of course.
Life is important, but this life is limited by time.
Dear Prof.Salatino,
Good Day,
Thank you so much for your kind contribution and for part of Ch. 5 of your book.
I do like the paragraph saying:
" FUNCTIONAL ONTOGENESIS OF PSYCHIC APPARATUS - ABOUT THE TIME
5.1. A PLEAT IN THE TIME
Everything seen so far on the structure and psychic function would make no sense, despite being founded on solid neurobiological research, if we not give a detailed account of the true psychic engine: time. In the refined handling, that psyche does of time is the key to understanding their normal and pathological functioning.
Talking about the time is the less complex given their intangibility, the same that
characterizes everything psychic.
To address the issue in a fun and simple to understand, we will invoke in a somewhat impertinent form, the Greek gods who had the absolute time domain. These gods are:
Krónos (χρόνος), Aión (Αἰών) and Kairós (καιρός)."
To Zeno of Citium, "Time is a distance of motion"(motion is illusion paradoxes -Achilles and a tortoise,Dichotomy, arrow in flight).An arrow of time (entropy).To K.Tsiolkovsky,"May be,time exists, but we don't know where we should seek it"."From eternity all is seen the other way than from time".They say, that S.Dali painted "The Persistence of Memory"("Soft clock") under the impression of Einstein's relativity (time is softness and hardness).The idea turned to the image when Dali looked at the Camembert cheese in August (1931).The poetic interpretation of time by B.Akhmadulina is rather interesting, too (1973):"The clock is striking, anouncing an autumn.The music is distinct and significant Who thinks, that hours vanish away?The garden is inactive.The nature is becoming more and more full of love and relationship.As if you are not an eyewitness, but a causer of its triumph"https://en.wikipedia.org/wiki/The_Persistence_of_Memory
Our respected colleague @Demetris wrote a fine paper abut time.
Article A simple definition of Time
Dear @Vilemar, Hazim and all, it's Ljubomir who is giving me a course about RG membership, and it's about time that we learn from him.
When I was a new RG member, I learned something from my mentor, K. He taught me to upvote good answers only, and put some time for QA each day, even if just a few minutes. Otherwise we will find a drop in score. I think I learned well. But then I knew Ljubomir who GENEROUSLY UPVOTES MANY ANSWERS, AND ENCOURAGES US ALL.
IT'S ABOUT TIME TO LEARN FROM LJUBOMIR. But having said that I cannot manage more than a few minutes of TIME for QA. (Hazim, your question reminds me of something that is good fun. See the pic. TQ.)
I certainly learn a lot , daily, from dear Ljubomir !!!
I am thankful for that.
I thank Vilemar and Miranda for their tribute, which was long due...
And I thank RG for giving us the chance to keep going and for this blessed great interaction we get here!
What a wonderful world we live in. One day I had given up RG, thinking I did not belong there. At the same very day (TIME) as if he read my mind Ljubomir recommended one of my articles as a reference and I thought I should never lose the opportunity to be around such a human being. Then, Maria, Miranda, Kamal, Hazim, Irina and so many others. I just put the names of the ones who are here except Kamal. But it would be very hard to name someone I would not be happy exchanging messages here. I would never have the TIME to mention all of them. I would not waste my TIME to think of someone I love less from here, I would not be able to make it even if I tried. It is TIME to be back to the issue of defining TIME.
"Time is many things to each one of us..." - Miranda.
(@Hazim, perhaps time came to existence with Day 1 of the universe?)
Let me bring another fine resource to this thread : Fundamental Physics, Partial Models and Time's Arrow by our respected colleague @H.G. Callaway!
"The most important and oft repeated explanation of time's arrow, however, is provided by the second law of thermodynamics. This paper explores the prospects for time's arrow based on the second law. The concept of causality employed here is empirically based, though acknowledging practical scientific interests, and is linked to time's arrow and to the thesis that there can be no causal change, in any domain of inquiry, without physical interaction..."
Conference Paper Fundamental Physics, Partial Models and Time's Arrow
Ancient times philosophers have weighed in with their perspectives on the relative influences of constitution and experience in determining the life course swings between the popularity of nature and nurture at each point in time with strong adherents of both positions waiting for some new technological advance to reinforce
Dear @Vilemar, many thanks for fine words and your impression of time!
Please see some links regarding the definition and interpretation of the term TIME.
http://whatis.techtarget.com/definition/time
http://www.thekeyboard.org.uk/What%20is%20Time.htm
http://www.exactlywhatistime.com/
https://plus.maths.org/content/what-time-0
The Who : Time Is Passing!
https://www.youtube.com/watch?v=y-Dhk_19RNw
Each day should be passed as though it were our last.
Publilius Syrus (fl. 1st Cent. BC )
Another fine resource Computational Models of Time Perception!
Conference Paper Computational Models of Time Perception
Time Credits is a volunteering scheme involving in local cleanup activities and help out at community events in exchange for “time credits”, which could be swapped for holidays, trips to the theatre and other rewards.
http://www.theguardian.com/voluntary-sector-network/community-action-blog/2015/mar/30/time-banking-encouraging-new-volunteers
Dear @Hazim, I do recommend this thread by dear @Marcel. Many fine answers and good resources!
https://www.researchgate.net/post/Why_defining_the_concept_of_Time_when_people_only_can_perceive_Change_and_Time_can_only_be_defined_and_measured_via_Change2
I love this wisdom,"Anyone who believes in his youth with his own mind,/
become in the pursuit of truth,dry and moody/
to claim a child for knowledge of life/
Grapes do not become turned into raisins"(O.Khayyam,tr.G.Plitseskiy).
And by G.Auden,"Time...worships language and forgives/Everyone by whom it lives"
http://www.adme.ru/tvorchestvo-pisateli/10-knig-kotorye-izmenili-zhizn-velikih-lyudej-1049060/
Time is constant change, a flux.
“No man ever steps in the same river twice, for it's not the same river and he's not the same man.” ( Heraclitus)
Truly,
N.F. (for the time being)
Pink Floyd "Time""This song is based on the ideas of Roger Waters of time, that life is not to prepare for what is coming, but taking control of your destiny".https://www.youtube.com/watch?v=A7pI96Osp9c
@ Irina, thank you very much for reminding this brilliant song!
TIME
"... You are young and life is long and there is time to kill today.
And then one day you find ten years have got behind you.
No one told you when to run, you missed the starting gun.
So you run and you run to catch up with the sun but it's sinking
Racing around to come up behind you again.
The sun is the same in a relative way but you're older,
Shorter of breath and one day closer to death. ..."
This is so true. And you cannot stop running, racing the time.
My best wishes,
N.F.
The is a new thread about time.
https://www.researchgate.net/post/What_is_Time3?_tpcectx=profile_questions
Time is a real phenomenon a continuous change through which we live. We feel the passage of time in the present, our interaction with the world in the present creates our memories which are then relegated to the past as we venture into the unknown future. Future appears to be a projection created by our past experiences stored in our memory. Most of the people of world share memories of past every time. Less people prefer present time. Some people always care about future but ideal time is that if people create balance between past, present & future.
What is Time?
The answers by experts are available here:
https://www.researchgate.net/post/What_is_Time3
Dear Colleagues,
Good Day,
See, this lovely philosophical (Romanian Proverb) about Time:
"There is a time to be born, and a time to die."
THE MANY FACETS OF TIME!
"Time presents to us in many different ways. We measure time, keep time, meet and greet in time and our daily lives are completely wrapped around the onward rush of time. We perceive time as past present and future. In physics time plays a major role in the measurement of motion and forces. Time also gives us a place like feeling to it suggesting that time is a dimension. This has sprung a whole culture around the concept of time travel leading to numerous science fiction stories, and movies. The many facets of time suggest that time is an emergent phenomenon that is arising from some underlying process that we need to identify.
The greatest breakthrough in understanding of time occurred about a hundred years ago with Einstein’s theories of special and general relativity which introduced the concept of slowing of time with motion and in gravity. Einstein also showed that large masses curve space and there is increase in mass with acceleration by application of a force. These discoveries of Einstein provide the necessary clues to solving the riddle of time..."
http://www.timephysics.com/
Dear Colleagues,
Good Day,
"In all our deeds, the proper value and respect for time determines success or failure."
---- Malcolm X
I think, Time from Creature is the determiner and decider to our fate
Time perfects all living beings as well as kills them; it alone is awake when all others are asleep. Time is insurmountable-Chanakya
Time is the description of the passing of moments in life. It is caused by the engagement in daily activities as it is dictated by the movement of the earth that defines the state of the weather.
Dickson Adom
Dear Colleagues,
Good Day,
"Physics of Time
Physics is the only science that explicitly studies time, but even physicists agree that time is one of the most difficult properties of our universe to understand. Even in the most modern and complex physical models, though, time is usually considered to be an ontologically “basic” or primary concept, and not made up of, or dependent on, anything else.
In the sciences generally, time is usually defined by its measurement: it is simply what a clock reads. Physics in particular often requires extreme levels of precision in time measurement, which has led to the requirement that time is considered an infinitely divisible linear continuum, and not quantized (i.e. composed of discrete and indivisible units). With modern atomic time standards like TAI and UTC (see the section on Time Standards) and ultra-precise atomic clocks (see the section on Clocks), time can now be measured accurately in about 10−15 seconds, which corresponds to about 1-second error in approximately 30 million years.
But several different conceptions and applications of time have been explored over the centuries in different areas of physics, and we will look at some of these in this section.
In non-relativistic or classical physics, the concept of time generally used is that of absolute time (also called Newtonian time after its most famous proponent), time which is independent of any perceiver, progresses at a consistent pace for everyone everywhere throughout the universe, and is essentially imperceptible and mathematical in nature. This accords with most people’s everyday experience of how time flows.
However, since the advent of relativity in the early 20th Century, the relativistic time has become the norm within physics. This takes into account phenomena such as time dilation for fast-moving objects, gravitational time dilation for objects caught in extreme gravitational fields, and the important idea that time is really just one element of four-dimensional space-time.
Relativity also allows for, at least in theory, the prospect of time travel, and there are several scenarios which allow for the theoretical basis of travel in time. There are even theoretical faster-than-light time-travelling particles like tachyons and neutrinos. However, the concept of time travel also brings with it a number of paradoxes, and its likelihood and physical practicality are questioned by many physicists."...
Please, go to the attached website link for more information ...
http://www.exactlywhatistime.com/physics-of-time/
One of the earliest devices to measure time was the sundials; which used the sun's motion as a standard .... If time-scape is already laid then what caused it to be
Time is the main drive to make me worried about future! that made me when I get up in dawn first look at the clock, finish my bath then back to clock, put on my clothes look at the clock, all the day ask myself what is the date today?
Few subjects have so vexed the human mind as time. It is both central to our subjectivity and, like the very fact of subjectivity itself, seemingly impossible to define. Perhaps the most famous answer to the question “What is time?” comes from Saint Augustine: “If no one asks me, I know. If I wish to explain it to one that asketh, I know not.” Scientists have had scarcely more luck. The Austrian physicist Ernst Mach unsatisfactorily defined time “an abstraction we arrive at through the changes of things.” Only filmmakers, in their masterful ability to manipulate our experience of time, have arrived at some measure of understanding. I suspect that, if one were to pose the question “What is time?” to Christopher Nolan, his response might look something like Dunkirk...
Read more at Film School Rejects: https://filmschoolrejects.com/dunkirk-experience-time/#ixzz4ohRsyLNz
Sharing link,
https://www.google.es/url?sa=t&source=web&rct=j&url=https://www.omicsonline.org/open-access/what-is-time-and-what-causes-time-2090-0902-1000184.pdf&ved=2ahUKEwiRrsy9-8HZAhVEXBQKHZ0qC-IQFjAAegQICBAB&usg=AOvVaw2E-jcqLrEwWWZvVKWxuYzW
Regards!
This is very good resource dear @Adriana.
" The explanation of time” from a totally new perspective and discover the real cause of time is done will bring to light the reason behind many predictions of Special and General Relativity. By knowing what is time and what is its cause you will discover why time slows with motion and in gravity..."
https://www.omicsonline.org/open-access/what-is-time-and-what-causes-time-2090-0902-1000184.pdf
It is good question. I follow its answers. Hope you good luck.
Best wishes
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