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Does time exist?


Gelsemium
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For me there is no more fascinating concept than time, but if we think of it can we really conclude that is exists? I mean, we see the succession of events that we catalog by hours, days, months and years, but at the same time what is time? Also, given the existence of time or succession of events, how can we jump between them?

 

 

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For me there is no more fascinating concept than time, but if we think of it can we really conclude that is exists? I mean, we see the succession of events that we catalog by hours, days, months and years, but at the same time what is time? Also, given the existence of time or succession of events, how can we jump between them?

Well, some believe it exists all at once and it's our own brains sorting it out into measurements (time intervals).

 

 

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Time is a human perception nothing more. Time itself does not exist. Man created the concept of time to keep track of the seasons so that they knew when to plant and harvest and other activities especially religious ones. It was also a means of travel. 1 hour towards the sun gets you here so to speak. It is purely a man made concept.

 

 

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Time has to exist though. Sure, it's not something physical that we can touch, or feel, or gather and divide out, but it is something that we can effectively calculate as happening. As Kimberlyd said above, it's something that's man made to gauge when to harvest and a means of travel.That alone proves that time is real because the seasons are cyclical. Plants grow, die, go through a season of snow (usually), and grow again and we can accurately time it to when we can. We can gauge our own growth, others growth, and see its passages in the erosion of the planet.

 

We might not always get it right and calculate it right within our minds, but the human mind can only do so much with what information we're given.

 

 

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BAKA

 

Time exist. These are the stupid questions human do when they can't understand the relativity..

 

Anyways, the definition of time is 100% alright.

 

Time exist because matter exist and space exist. After years of hard thinking about these concepts, i've concluded that time exist inclusive when it doesn't exist, because it's a "dimension" (No, not a dimension you're thinking but a dimension of quantifiacation of moments.) So it can take any value.

 

Do you know why minutes repeat each our? Why hours repeat each day and month every year? Because time isn't "the time" but it is "times". I mean, time, actually, is the relation of all matter in a gravity field. The existence of what we think is a continue-time is because our brains and bodies are part of the same gravitational-space-time field. Time is just perceived as our body matter do, and the existene of the speed of light, when it is measured it is the same because we measure it.

 

 

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Time is a human perception nothing more. Time itself does not exist. It is purely a man made concept.

And so we run an experiment to test your hypothesis.

 

Acceleration, momentum and kinetic energy all have a time component in the maths that we use to calculate their values. The hypothesis is that "time is purely a man made concept." If that's the case we can ignore the time signatures in the above values and proceed to the experiment with that in mind.

 

We (well not exactly "we" - let's make that "you") climb to the roof of a ten story building and jump. During your 120 foot fall you tell yourself that time does not exist therefore your momentum, acceleration and kinetic energy do not exist. When you make contact with the concrete below you should encounter no problem, yes?

 

 

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I am not a scientist, but I do recognize that science has made amazing advances and allowed us to reach another level of knowledge. The issue for me with the situation you describe Darby is that we would jump of the building and crash down regardless of the existence of time, acceleration and so on, it's just a succession of events, a catalog we humans put on the succession of events.

 

 

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Time is certainly a weird scientific concept. It's something we cannot see or touch like light or a substance. It's not something that we can detect per se, such as radiation, particles, or ions. It's only something that we can measure. And unlike other measurements such as weight, length, mass, etc., there is nothing physical that we are measuring. It seems somewhat of an abstract concept - a measurement of the sequence of events that we experience and perceive. I draw a blank as to other measurements in science that are as unique in this regard. Maybe that is part of the reason it captures so much of our imagination - because it is tricky to grasp in the way we grasp other ideas. Perhaps saying that time doesn't exist is akin to saying that meters or joules don't exist. I don't know - Darby can set me straight if I am wrong!

 

 

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And so we run an experiment to test your hypothesis.Acceleration, momentum and kinetic energy all have a time component in the maths that we use to calculate their values. The hypothesis is that "time is purely a man made concept." If that's the case we can ignore the time signatures in the above values and proceed to the experiment with that in mind.

 

We (well not exactly "we" - let's make that "you") climb to the roof of a ten story building and jump. During your 120 foot fall you tell yourself that time does not exist therefore your momentum, acceleration and kinetic energy do not exist. When you make contact with the concrete below you should encounter no problem, yes?

You need to stop being so rude, Darby. ;)

 

RMT

 

 

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That is the concept though. We as humans have to add a value to everything in order for us to perceive and understand things. So man kind created time, measurements, dates.... etc. There was a moment in history when these things were not acknowledge and yet life still existed, seasons changed.... Time itself was created by man to further understand and "calculate" those events, that does not mean it exist.

 

The falling from the tower idea, does time determine whether or not you hit the ground? No. Does it effect any aspect of how you hit the ground. No. All it does is gives a person the ability to calculate and understand the event, nothing more. That does not mean it truly exist outside of human perception.

 

 

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The falling from the tower idea, does time determine whether or not you hit the ground? No. Does it effect any aspect of how you hit the ground. No. All it does is gives a person the ability to calculate and understand the event, nothing more. That does not mean it truly exist outside of human perception.

Therefore you should have no problem with taking the, excuse the intentional pun, "leap of faith."

 

You propose that time is a man-made concept. In the equation for kinetic energy

 

K = 1/2 mv^2

 

"v" is velocity and is given in terms of some unit of linear displacement (length) per unit of time (v = dx/dt).

 

If time is a man-made fiction the equation must state that kinetic energy is one half the square of the mass times zero...which is, of course, zero. No kinetic energy.

 

If kinetic energy is zero why don't you point your nose down from the roof and take the ten story leap of faith?

 

 

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Tme certainly exists, as well as space. Space and time are basically inseparable and one is needed for the other; consider this analogy of the Polo Mint sweet/candy. The hole in the middle of the sweet/candy is necessary for the existence of the mint. A polo mint sweet/candy without a hole is NOT a polo mint/swett/candy. Space cannot exist without time; space exists because time exists and vice-versa. I must add, this is my understanding, i.e. that space and time are both intertwined.

 

 

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Mathematics, computations, equations... these are all man made concepts. They are meant for us to understand the world around us, but they in fact have no existence except to beings of higher thought (humans, aliens... take your pick). Animals do not use these concepts. They only know... if they run fast enough they will eat that day. Time and all other forms of calculation was created by man as a means to keep track and to understand things... but in a universe sense, they don't actually exist. Nothing works on a time schedule except us.

 

 

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I've traveled into the past. No, maybe it's Deja vu. No, most likely it's just that, often, we think in similar ways until a better description/explanation is introduced.

 

What am I talking about? This is very similar to what I posted, the very first time I posted here.

 

Time doesn't exist. It is a construct of the human mind. That's what I thought was correct. I had discussed it with people I worked with and some agreed and some didn't care.

 

When I posted here, time was explained to me in a way I had not considered. I was both right and wrong. I now better understand that time, the time that orders and defines an event, is an integral part of the universe and existence itself. The "measure" of time that is required for our brains to accept the reality around us, is the construct of the human mind. It, the mind...Us... needs the measurement of time. Before WE began measuring time, as kimberlyd stated...

 

There was a moment in history when these things were not acknowledge and yet life still existed, seasons changed.... Time itself was created by man to further understand and "calculate" those events, that does not mean it exist.

... seasons changed, the universe existed and we were mostly oblivious to why. Our concept of measuring time began to allow us to begin to understand the concept...Why?...It was the beginning of us realizing that "order" mattered. The seasons always change and we determined that planting in the spring gave a summer for growth but planting in the fall meant no crops. That is the time we use every day.

 

The universe's time is more of a "definition". Falling from a tower...why does time matter...how does it come into play. If I actually do understand it correctly, the time/duration of your fall matters greatly. Falling from a 1 foot tall tower takes lets say 1 sec. Not much time to build up forces that will matter. Might still hurt, but not too much. Then falling from a 1000 ft tall tower takes much more time and allows for gravity to pull longer against you allowing for your acceleration to increase, maybe to terminal velocity, then the formula, K = 1/2 mv^2, and the time factor,"t", in the, "v = dx/dt", variable matters very much. It's gonna hurt...a lot.

 

Whether or not you "measure" the difference in the times doesn't mean it won't hurt more. Time IS a factor.

 

So, that's my simplified example of why time does exist.

 

It's the "way" we measure time that is our own construct and subject to variation should we choose.

 

kimberlyd, if you have ever read my first post you would see that I agree, somewhat, with you but, I was offered a better perspective on my understanding. An animal's ability to "conceive" time is a whole different matter for discussion.

 

 

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An animal's ability to "conceive" time is a whole different matter for discussion.

Indeed and that of insects. Have you ever tried to swat a fly, and wonder why it is so hard to do so? It has been proposed that the fly's perception of "time" is different than that of us humans. I have posted somewhere in this forum an experiment/research that explores this idea.

 

 

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The question if time exists is much deeper than our perceptions.

 

We must distinguish between time and registration of time. Everything what we see daily - calendars, watches, stop-watches, etc. are only instruments for measuring the time, and are not the time itself.

 

We also must know, that our bodies can't detect the changes of the time speed, because the rates at which it slows down or speeds up around us are extremely small - billionths of a second at the best. Our bodies simply don't have sensitive enough organs to detect the difference.

 

Experimental evidences and proves for the existence of time and its different speed are building up. The time dilation theory has been tested with two super accurate atomic clocks. One placed on an airplane, traveling with a high speed,and the other staying on the ground. The results has showed, that the clocks really differ, and they differ as much as the calculations. Later the experiment has been replicated from skeptics, with more accurate atomic clocks, and they actually proved it again. The satellites, that orbit the Earth exist in a different time, than the Earth, and this is a known fact. Actually, if this difference is not mathematically corrected by the aparats, the GPS system will not work properly. So, if the time ticks with a different speeds, then it really exists, and it is not invented by the man. The clocks are, but the time not.

 

 

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I mainly see time as a unit of measurement created by man, but it must exist because things pass, things grow, things get old and deteriorate, living creatures are born and then die, memories get more and more distant and then fade. Time is the concept we use to measure all that occurs and the distance between every occurrence, so the phenomenon must exist.

 

I also compare time to a flowing river, moving all the time, what if we could speed up that flow or slow it down, or reverse the flow completely. If we could do that and apply it to time, what would we have - time travel.

 

 

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I believe time exists. It is always pressing on me to get more done in the day before it runs out. I do not know about traveling back and forth in though. As much as I would want to go back and change some of my choices, I know my past choices have given me present day joys.

I agree. One thing EVERYONE has in common is that bad things have happened to them. If we were to change any of that there is no way of predicting what we'll lose present day. The last thing in the world I would want is to change getting a dog bite and that leading to me not getting pregnant with one of my children.

 

 

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