The universe is spacetime, that evolved from the BB. Matter came later and is what is in the universe/spacetime.
Does time exist?
- Thread starter Asexperia
- Start date
- Status
Asexperia
Registered Senior Member
There is something that does not fit me. If matter came after the BB, what was that exploded ?
Universe was before and after BB ?
Last edited:
The BB was not what you envisage as a conventional explosion, with everything flying out from a specific point. It is actually a misnomer for that reason but has become a standard explanation for space and time [as we know them] evolving and expanding from a hot dense state. The observable universe/space/time, for which the BB is the acceptable explanation for, was packed to within a tiny volume, so it happened over all of spacetime at that instant, and was the beginning of space and time [as we know them]
In summing, it can be reasonably accurately said that the BB was the evolution of time and space [as we know them] from t+10-43 seconds and a "Superforce" from whence the four presently known forces decoupled as temperatures and pressures dropped with expansion. It was essentially all of spacetime as we know it, so there is no sense asking what it expanded into, and it was the beginning of time, so its no sense asking what was before.
https://www.popsci.com/big-bang-term-origin-fred-hoyle/
and....
http://www.astro.ucla.edu/~wright/infpoint.html
DaveC426913
Valued Senior Member
As pad explains, it was not an explosion; it was a rapid inflation.
Here is a timeline of the evolution of the universe in its very early stages:
https://en.wikipedia.org/wiki/Chronology_of_the_universe#Tabular_summary
The first few phase are the separation of the four fundamental forces.
Quarks form but it is still too hot for them to make protons and electrons.
You see that that atoms don't form from protons, neutrons and electrons until the universe is about 380,000 years old.
Asexperia
Registered Senior Member
OK. For the Theory of relativity the universe is spacetime and all celestial bodies.
But I wonder what was before BB.
Asexperia
Registered Senior Member
THE MAGNITIVE DUALITY (CHANGE-INTERVAL)
This is an edition to the posts #1952 and #1964.
The change-interval duality explains the nature of time. This duality arises because changes are the material basis of time. Time would not exist without these two different characteristics. Change is synonymous of phenomenon. Change is between the interval (a start and an end, a before and an after). This duality is magnitive because is objective (changes), perceptible-imperceptible and measurable (intervals).
1) Change:
- is perceptible.
- is irreversible.
- occurs continuously in the present.
2) Interval:
- is imperceptible, does not produce sensation.
- relates two sequential moments.
- increases continuously, is measurable.
This is an edition to the posts #1952 and #1964.
The change-interval duality explains the nature of time. This duality arises because changes are the material basis of time. Time would not exist without these two different characteristics. Change is synonymous of phenomenon. Change is between the interval (a start and an end, a before and an after). This duality is magnitive because is objective (changes), perceptible-imperceptible and measurable (intervals).
1) Change:
- is perceptible.
- is irreversible.
- occurs continuously in the present.
2) Interval:
- is imperceptible, does not produce sensation.
- relates two sequential moments.
- increases continuously, is measurable.
Last edited:
Since the BB was the evolution and beginning of space and time [as we know them] from t+10-43 seconds, then one cannot really ask what is before....As Stephen Hawking explained, that would be like asking what is North of the North pole.
Before that t+10-43 seconds, all we can do is speculate and depart from the actual theoretical based science of things.
If you like to speculate I would google 'the universe is the ultimate free lunch" or Lawrence Krauss.
All forms of energy and matter . From the micro to the macro ( in no particular order ) . They All exist always. Together .
Inotherwords there was No before .
BB is based on the physical .
Last edited:
Asexperia
Registered Senior Member
Hmmm.
It depends from where you look.
In this image, the sun is north of the North Pole.
Last edited:
Hmmm.
It depends from where you look.
In this image, the sun is north of the North Pole.
How do you know this ? Just asking . river .
That the Sun is North of the North Pole ? The North Pole being defined as ....?
Geologic or Magnetic ?
Last edited:
Hawking was speaking of no more Earth north of the north pole...or if you prefer, south of the south pole.
Asexperia
Registered Senior Member
The Hawking observer looks at the Earth, the observer of the image looks at the sky.
That's relativity.
No, like all analogies, it's taking it beyond its parameters.
Asexperia
Registered Senior Member
So that happens with the twins paradox. The twin brother does not travel to the future, he travels in his own present.
THE SPATIO-TEMPORAL ADJUSTMENT
There are four questions that allow us to achieve spatio-temporal adjustment. On some occasions we have felt disoriented in relation to the following questions:
1- What time is it?
2- What day is today?
3- Where am I?
4- What is time?
In question # 3 the answer has been extended with the use of GPS.
With question # 4 we manage to be aware of what time is. Due to its nature it is the only way to become aware of time. The answer is always the same: time is the change-interval duality. By definition, time is the duration of things, between an interval, in a given physical state or situation.
To your last statement ; disagree .
Time is the measurement of duration ; between an interval , in a given physical state or situation .
Time does not cause duration . Time is the consequence of movement . Duration . Because of physical things ; movements .
Both duration and time are based on physical things movements .
Asexperia
Registered Senior Member
And what is the duration not measured ?
Without measuring or measuring, time is always time.
Time is a magnitude, therefore it can be measured.
Time is a continuous quantity that increases continuously.
Last edited:
To your first statement ; fundamental interactions between all things . Which needs no duration to exist .
Asexperia
Registered Senior Member
THE CHARACTER OF TIME
The concepts of matter, space and time are primary concepts, so it is difficult to define them. Matter is a substance, but it is the only one that exists. Space is a emptiness, but it is the only one that exists. And time is a duration, but it is the only one that exists. However, the concepts of substance, emptiness and duration are broader than the concepts of matter, space and time respectively.
The character of time is obtained from its definition: time is the duration of things (objects and bodies) in a given physical state or situation. The states can be: in motion, at rest, with life, in waiting and in existence.
In hourglasses we notice a periodic phenomenon. In clock hands, these move at different rates by measuring different intervals. In digital clocks, the digits last one hour, one minute and one second respectively in rest state. Rest is a form of change, it is a phenomenon.
Time has the character of being a magnitude, of being able to divide into sequential intervals and of having as a basis the changes that things experience.
The concepts of matter, space and time are primary concepts, so it is difficult to define them. Matter is a substance, but it is the only one that exists. Space is a emptiness, but it is the only one that exists. And time is a duration, but it is the only one that exists. However, the concepts of substance, emptiness and duration are broader than the concepts of matter, space and time respectively.
The character of time is obtained from its definition: time is the duration of things (objects and bodies) in a given physical state or situation. The states can be: in motion, at rest, with life, in waiting and in existence.
In hourglasses we notice a periodic phenomenon. In clock hands, these move at different rates by measuring different intervals. In digital clocks, the digits last one hour, one minute and one second respectively in rest state. Rest is a form of change, it is a phenomenon.
Time has the character of being a magnitude, of being able to divide into sequential intervals and of having as a basis the changes that things experience.
Think more deeply upon what you propose .
- Status