Timezones

Try saying its 15 hours over and over and you may come to believe it. Believing something is like it is true, even when not true. This is the way to get what you want. Seems to be a popular trend these days.

 

This was the source of our miscommunication. Thera's best known fireworks happened a mere 3,600 years ago. Late at night, I didn't recognize the possible connection to the Theia name. Actually, haven't been following the modern developments, so possibly wouldn't have made the name connection in daytime either.

It is an incredible leap from one or two leap seconds per year, to tens of thousands of leap seconds per day. Ancient Chinese astronomical records of total solar eclipses put a much tighter cap on the rate for the past three or four millennia.

While you've done more than a few leap seconds, I'll bet that your total is fewer than 30.

 

May we should just find him a variable speed clock, one that ticks out 16 hours while the sun is up, and just 8 hours when it is down.

 

I've long subscribed to the notion that time is the fabric of well, everything. Anyway, an article, even the "pace" of time varies:

https://www.advancedsciencenews.com/time-ran-slowly-in-the-early-universe-just-as-einstein-predicted/#:~:text=Using%20quasars%20as%20ticking%20cosmic,today%2C%2013.8%20billion%20years%20later.

 

i tried to get mrs b to leave the clocks alone at the fall time change, but she wasn't buying in.

 

Time is nature's way of preventing everything happening at once...

 

There was a movie about that.

 

Time is an illusion. Lunch time, doubly so. -Ford Prefect, Hitchhikers Guide to the Galaxy

 

grwat book, especially if you're stoned

 

What an old school thought. Some of us even had party lines.

Now we whatsapp and video chat anytime anywhere for free. Oldest Grand to in a gap year 5 or 6 time zones away and we chatted today with her as she showed us around her 300 year old apartment. At 5:10 she could barely get under the exposed beams.

 

Yes, my auntie's calls were very much in the olden days. It does still amaze me that I can video call my parents for free now.

 

I think att will still set you up with a landline, with local calls and the long distance rate of your choice. Not sure though, but the wiring is there. I haven’t checked western union for telegram service in a long time. When you want to reach someone far away like in the next state, a guy comes up to the door with your message in short order. It was usually bad news. Someone usually died.

 

Some of us even worked on them.

That depends on where you are and how many bucks you have.
MOSTLY Big Bell isn't all that interested in selling you copper, because in many places the wiring ISN'T there.
Copper is regulated.
Copper is expensive to maintain, and unionized.

Glass is the new copper.

I got my last telegram in the 80's
(A trifecta! Notified of it's arrival by telephone, I had to pick it up at the Post Office!)
Nobody died.
Dot.mil was notifying me, in writing, that I had to go places and do things.

Telegraphy was REALLY REALLY biz-friendly.
Like Facsimile, which was BASED on telegraphy and only 6 years younger (1837 and 1843) the recipient got the news in writing AND there was a receipt.

One of the hurdles that telephony faced back in the day was that, unlike email, snail-mail, etc....it was 'word of mouth.'

The telegraph was one of the first inventions that properly utilized that thair 'lectricity stuff.
The TELEPHONE would go on the be one of the more profitable things to use it, but like many disruptive technologies....it was slow to catch on, and like most disruptive tech......it got disrupted.

You can still send and receive a telegram I suppose.
BUT....not through Western Electric.
Someday soon....like....TODAY in many places, you will still be able to make a call over copper with a telephone.

....but not with THE phone company.....

 

I’m still not sure that’s not what’s happening. Got a minute…

 

"Time ran slowly in the early Universe, just as Einstein predicted
Using quasars as ticking cosmic clocks, scientists took a journey back in time, discovering time progressed five times slower just after the Big Bang."


I'm not liking the headlines on this and some other similar articles. From reading the referenced abstract, and certain other outlets reporting this story, I would interpret this as meaning time didn't actually run slower back then, it only appears that way when observed from our very distant vantage point. And this isn't a discovery, but rather an independent confirmation of what many had be assuming.

My astronomical mind thought it reasonably understood the cosmology of the 1970-80s, but has had considerable difficulty wrapping around many of the additions since. But basic cosmological time dilation can be intuitively understood from oversimplified Newtonian mechanics applied to the old cosmology, without considering gravity, general relatively, and modern accelerating-expansion cosmology. Age and distance scalings turn out different, but the general idea should be the same.

In cosmology, time dilation should be just another face of red shift. Optical (or electromagnetic) red shift is analogous to the Doppler audio tone shift we hear from passing planes, trains, and automobiles, where the sounds of departing machines shift to lower pitch. The higher the speed, the lower the pitch. Time clocks are now defined in terms of frequencies of specific atomic actions. Frequency is an alternate measure of wavelength. Optical wavelengths of distance cosmological objects are stretched out in the red (lower pitch) direction, depending on either the recession speed (old cosmology) or degree of space expansion (newer cosmology), which are linked to age and distance (both models).

So as observed wavelengths (red shift) of distant objects get stretched longer, their observed clock time rates should run equivalently slower. Under the old cosmology, for a galaxy receding from us at 80% of the speed of light, its clocks should appear to us to run 5 times slower than our clocks. Under the new cosmology, it isn't receding from us, the space in between is just expanding, with a similar resulting red shift and time dilation.

But some astronomers wanted confirmation of this linkage by other means, not merely assume it to be so. Previously, this had been independently confirmed only out as far as the most distant individually observable novas. Nearby novas evolve, brightening then dimming on a known time scale. Distant novas were seen to evolve slower, consistent with their red shifts. But our telescopes can spot these individual novas only out to a modest distance, significantly less than the farthest galaxies and quasars they can see. Some people came up with potential evidence suggesting that the distant quasars might not fit this rule, or might not even be anywhere remotely as distant as believed.

Quasar brightnesses also vary, but randomly, not on a fixed pattern similar to novas. But they do show some statistical properties linked to time. This report collected observations of a large enough sample of quasars, over enough time, to compare these statistical time properties with their red shifts. The result confirms the linkage between cosmological time dilation and red shift, to a greater distance and age than before.

At least, that is my initial interpretation of it. Without seeing behind the paywall.

 

I have a laymen’s understanding of redshift, and a very tenuous grasp of Einstein’s assertions regarding the pace of time depending on relative motion. Thanks, a lot to digest there.

 

I heard from someone long ago time is a change of state. My addition, so if there is no time, everything ceases to exist. Atoms, etc are always active, hence time. It stuck with me the simple definition. Nothing, no time, then boom big bang and time starts. Also explains how eternity may be something. It’s fun to think about but since we are built to live in time, not very understandable.

 

Since studying and taking up meditation - I find many challenges with time when Meditating.

You only focus on being in the moment here and now with no distraction - very hard if not impossible to do.

Have you guys heard the discussion - the past is gone forever never to be seen again - the future is not guaranteed and may never come.

Maybe philosophical nonsenses but somehow the discussion made me think of it.

 

Not really philosophical nonsense. If you throw a rock every change of state is at the present time of each action down the the parts of the atoms, the ones we are aware of. It seems to me it is all science and the key part we don’t understand. Technically, everything is only energy? We have the moon and earth pulling on each other. Break a stick and it cracks the bonds. It’s all just bonds.
That we can remember things so well, or attempt to predict the future, and meditate to live in the present is pretty interesting.

 

I would suggest that basic cosmological time dilation comes straight from that red shift. Apparent time is stretched (slowed) by the very same factor that light is stretched (red shifted). None of this stretching happens at the source, it all happens on the path to the observer. And this part can be explained by referencing just Newton, without Einstein.

Einstein does throw more into the mix, including the commonly mentioned speed and gravity time dilations. But his additions are not necessary for an initial intuitive understanding of cosmological time dilation

Our current science cannot look back even to the instant of the (mislabeled) Big Bang, let alone before. Things are exceedingly foggy before about T = 10^(-20) second, and there is a very hard firewall at about T = 10^(-43) second.

Whether or not time or anything else existed before that is an open question that current science is unable to explore. This gives philosophers plenty of freedom to opine, and make their own definitions, without fear that scientists can contradict them.