^^^
No. It does not.
The body immediately begins to break down & decay. People may do various things which affect that but time goes on & the body eventually is not a body & that yet does not affect time.
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Does time exist?
- Thread starter Asexperia
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No. It does not.
The body immediately begins to break down & decay. People may do various things which affect that but time goes on & the body eventually is not a body & that yet does not affect time.
<>
Gawdzilla Sama
Valued Senior Member
No, not even then. The body decomposes according to the biological rules for that situation. (Purdue has a "corpse lab" where they study such things.)
I have posted the following to at least one Thread, possibly to this one.
This is approximately what Einstein wrote, which I think is very succinct and pretty much describes it.
It is interesting that Albert used bold or italics for before & after, implying that they were undefined terms, not definable via the use of simpler terms or concepts.
This is approximately what Einstein wrote, which I think is very succinct and pretty much describes it.
When an individual ponders his experiences, he can order the events in his life using the criteria of before and after. He can assign a number to each event in such a way that events assigned a lower number occurred before events assigned a higher number.
It is convenient to use a device called a clock to provide a consistent set of numbers for use in ordering events.
In describing the laws of physics using the language of mathematics, it is convenient (if not necessary) to use a continuous variable called time. This variable similarly orders events based on the criteria of before and after.
There is little (if anything) more that can be said relating to time.
It is convenient to use a device called a clock to provide a consistent set of numbers for use in ordering events.
In describing the laws of physics using the language of mathematics, it is convenient (if not necessary) to use a continuous variable called time. This variable similarly orders events based on the criteria of before and after.
There is little (if anything) more that can be said relating to time.
It is interesting that Albert used bold or italics for before & after, implying that they were undefined terms, not definable via the use of simpler terms or concepts.
^^^
Did you post that before I posted this? Am I replying to your post? Or is this a reply to your next post?
Could I have done this before starting up my computer?
Do you dry off before you shower?
Do I wake before I sleep?
Are you going to Scarborough Fair after you arrive there? She once was a true love of mine. But not yet.
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Asexperia
Registered Senior Member
The day and the year are natural units of time.
The division of the day in hours, minutes and seconds is conventional,
but very useful for ordering events.
We perceive time, but we need two tools to measure it (duration):
1- clocks
2- the chromnesia or temporary memory.
The division of the day in hours, minutes and seconds is conventional,
but very useful for ordering events.
We perceive time, but we need two tools to measure it (duration):
1- clocks
2- the chromnesia or temporary memory.
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DaveC426913
Valued Senior Member
'Natural' in what sense?
Our day has not always been the same length. It was once much shorter - and continues to change.
A year is merely an arbitrary, human-defined concept, and even that is not the same length from year to year.
I think you mean the day and the year are convenient, Earth-specific and human-centric units.
Exactly .
DaveC426913
Valued Senior Member
River and I agree.
The world will now end.
Thanks for playing everybody.
The world will now end.
Thanks for playing everybody.
A sun-dial casts a shadow depending upon the Sun's relation to the Earth. Midday is when the Sun is at it's highest. Should you be on the equator, you are without shadow...
"I dug me a hole!": Joey, Friends.
"As he faced the Sun he cast no shadow.": Cast no shadow, Oasis.
"I dug me a hole!": Joey, Friends.
"As he faced the Sun he cast no shadow.": Cast no shadow, Oasis.
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I sometimes try to estimate the time from the Sun's position before checking the actual time. It is based upon sunrise at six in the morning and sunset at six in the evening. Midday is when the Sun is at it's highest point. ☺
Halfways would be:6,7.30,9,10.30,12,1.30,3,4.30,6.
☺
Alternatively you may count:
(n+1)-(n-1)=2 ☺
Halfways would be:6,7.30,9,10.30,12,1.30,3,4.30,6.
☺
Alternatively you may count:
(n+1)-(n-1)=2 ☺
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Asexperia
Registered Senior Member
The duration of the day doesn't depend on the action of Man.
DaveC426913
Valued Senior Member
It depends on Man to define it.
If one were to simply take sunset to sunset as one day, that would be a terrible measuring unit, since it changes all the time.
Any other way one could define a day will be just as useless for your purposes as a "natural" unit of time. (Try it.)
The only way to make a useful unit of time is to define it in terms of something that is more consistent.
Asexperia
Registered Senior Member
They define a natural (not artificial) phenomenon.
The day is the passed time (duration) between two consecutive midnights or middays.
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Asexperia
Registered Senior Member
No. Only the day and the year are natural.
So a month defines a varying number of days
A week defines 7 days in a repeating pattern
A second defines 1 60th of a hour
So these periods are defined
What's with the below?
???
Asexperia
Registered Senior Member
Yes, all periods are defined, but I mean it's that the month,
the week, the hour, the minute and the second are conventional.
So are these the only natural phenomenon natural units of time?
No others?
Only two?
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