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How Old Is Earth?
Space.com ^ | February 7, 2019 | Nola Taylor Redd, Space.com Contributor

Posted on 02/09/2019 12:13:39 PM PST by ETL

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To: Openurmind

Yes, you can find someone on FR to defend any notion that’s out there. As long as I’ve been here, it still surprises me the number of screen names I see for the first time every day.


41 posted on 02/09/2019 4:05:28 PM PST by sparklite2 (Don't mind me. I'm just a contrarian.)
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To: ETL

How old is the Earth? How uncouth! A gentleman doesn’t ask.


42 posted on 02/09/2019 4:07:44 PM PST by Sirius Lee (In God We Trust, In Trump We MAGA)
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To: ETL

How old is the Earth? How uncouth! A gentleman doesn’t ask.


43 posted on 02/09/2019 4:07:47 PM PST by Sirius Lee (In God We Trust, In Trump We MAGA)
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To: Sacajaweau

Great comment. Maybe God’s time is different than our time. Maybe He invented time as a reference for us. Maybe since He had no beginning or ending, time was irrelevant. Maybe the only real definition of time is observed as 9.2 billion vibrations of a cesium atom, because we don’t really have a good handle of what time is. Time is relevant only to the space that we currently occupy. Just theories, but your comment is an excellent point. If it was created for our use, then does it really apply to other planes of existence?


44 posted on 02/09/2019 4:11:53 PM PST by richardtavor
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To: sparklite2

And while we are at that notion. I have a concern that there may be some here who are just here to make everyone here look foolish as “Republicans and Conservatives”. Sometimes I ask myself if there are really so many on our side so ignorant as to make us all look so ignorant, inept, and racist. It sure doesn’t do us any good or support our true nature and position. If not suspect, then we have earned every damned thing they accuse us of without a doubt.

From my observations there needs to be a little extra scrutiny in this department.


45 posted on 02/09/2019 4:22:39 PM PST by Openurmind
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To: Openurmind
What made it move??? What changed this??? Always leads to a question... lol

Yes, I always thought it was the crust moving over a fixed hot spot, but I suppose it is also possible that the inner Earth is rotating at a slightly different rate than the crust, hence a moving hot spot relative to the crust. In fact, it probably makes more sense that the gooey mantle is sliding/spinning even more slowly than the more liquid core.

46 posted on 02/09/2019 4:25:36 PM PST by Sirius Lee (In God We Trust, In Trump We MAGA)
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To: richardtavor

“Time is relevant only to the space that we currently occupy.”

From what I now understand this a very astute and relevant possibility.


47 posted on 02/09/2019 4:30:08 PM PST by Openurmind
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To: Openurmind

Wouldn’t it be a hoot to finally perfect inter-galactic travel only to find out half the other galaxies are made of anti-matter. It could happen!


48 posted on 02/09/2019 4:32:46 PM PST by sparklite2 (Don't mind me. I'm just a contrarian.)
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To: Sirius Lee

Absolutely makes sense. We keep looking at everything in 2D when in reality there may be more axis of movement we don’t understand and it should actually be viewed as 3D.


49 posted on 02/09/2019 4:36:10 PM PST by Openurmind
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To: sparklite2

I had a structural geology professor in the mid 1970s who was opposed to plate tectonics from his viewpoint all orogenic activity, i.e. mountain building could be explained by geosynclines. Being a geophysics major was a “rough course” for me!


50 posted on 02/09/2019 4:36:40 PM PST by Reily
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To: Reily

Wow. He must have been tenured.
How else could you teach personal
hogwash and stay employed?


51 posted on 02/09/2019 4:40:11 PM PST by sparklite2 (Don't mind me. I'm just a contrarian.)
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To: sparklite2

One thing I learned a long time ago, and I hope I am not the only one, but I never discredit any theory. Far too many times I judged these as false and they turned out to be true. Nope... I am not going to be ignorant and throw up a mental firewall, I will always have an open mind. Doesn’t mean I have to follow them off the cliff though. :)


52 posted on 02/09/2019 4:45:53 PM PST by Openurmind
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To: Reily

I have a curious and respectful question. Do you remember what the current acceptable 100 year “sink rate” is? Only asking because I would like to make a historical building comparison that might baffle some.


53 posted on 02/09/2019 4:52:30 PM PST by Openurmind
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To: Openurmind
Geophysical fluid dynamics. You have a spinning ball of molten metal cooling from the outside in. Thermal bands form in addition to centrifugal forces slightly losing out to gravitation forces so that denser elements sink and impart faster spins than outer, less dense layers.

Add to that the random variable of comet/asteroid strikes imparting enough force to upset the boundaries of these spheres of varied speed, one within the other, and creating internal tsunamis of magma and liquid nickel and now you've got your hot spots welling up on the opposite side of the disturbance.

It's a theory. I'm sure someone much smarter than me has already thought of it.

You could probably form an experimental model on the ISS with a rotating ball of hot soup with tiny sensors suspended within. Start cooling it and then shoot it with a bb and observe. I'm not a scientist, but that's how I'd go about testing it.

54 posted on 02/09/2019 4:58:53 PM PST by Sirius Lee (In God We Trust, In Trump We MAGA)
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To: sparklite2

And old! Looking back I was an idiot for fighting with him. I got a bad grade in structural which made both going further like grad school in the geosciences or a job harder to do. The good thing for me (Though my parents were very annoyed with it at the time!) I had enough physics hours if I took one more year I would get a dual degree. That’s what annoyed dear old mom & dad! Me being stubborn again & costing them extra money! I was kind of known for that in those days! I did make up for it later. What did I do, grad school and/or job-wise, worked 6 months then went grad school in electrical engineering! That almost gave my father apoplexy! Another zigzag by me that took a lot of explaining! It helped this time he didn’t have to contribute any money!


55 posted on 02/09/2019 5:05:54 PM PST by Reily
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To: Openurmind

No I don’t remember that!
If you can give me some context I will dig around.


56 posted on 02/09/2019 5:07:21 PM PST by Reily
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To: Sirius Lee

I think you are on the right track. Our crust is no more thick as an eggshell on an egg. And it is fractured everywhere. We are standing on precarious soil...

The reality is actually a bit intimidating. lol


57 posted on 02/09/2019 5:11:34 PM PST by Openurmind
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To: Reily

Structural geological engineering teaches safe places to build, this is especially important for huge buildings such as high-rises. If I remember right the current accepted “sink rate” specification is no more than 6 inches in a hundred years. Here’s one though... The ancient pyramids have not sunk more than a half inch since they were built. Since you studied this I had to bring it up as an interesting odd factoid. :)

Isn’t that incredible? Apparently they had some sort of knowledge about this science. :)


58 posted on 02/09/2019 5:21:33 PM PST by Openurmind
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To: ETL

Somebody wake up Ruth Bader Ginsburg and ask her how old the earth is. She was there at its’ birth.

She was the “Ruth” in the old Testament when she was a teenager.

That is why one of the first chocolate candy bars made millennia ago was named “Baby Ruth” in her honor. Besides it has a lot of her characteristics, nuts.


59 posted on 02/09/2019 5:58:39 PM PST by MadMax, the Grinning Reaper (with)
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To: ETL

#1. Nice picture of Gneiss and people think it is the oldest rock type known to man. No Schist!


60 posted on 02/09/2019 5:59:55 PM PST by MadMax, the Grinning Reaper (with)
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