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Originally posted by XtraTL
Whilst the field is shifting, it is a very slow and minor change which you would only notice on compasses over a period of years, if not decades (unless you live very near the north pole, e.g. in Canada in which case it might be more noticeable over a period of a few years).
Originally posted by MadDogtheHunter
reply to post by Byrd
I never try to argue with an ATS Staff member
but I'm afraid your statement of "Magnetic north is still where it should be" is completely inaccurate. The USGS and NASA have released articles that counter that claim. Here is the link showing NASA's finding along with the USGS Studies.
Originally posted by GoldenFleece
Originally posted by XtraTL
Whilst the field is shifting, it is a very slow and minor change which you would only notice on compasses over a period of years, if not decades (unless you live very near the north pole, e.g. in Canada in which case it might be more noticeable over a period of a few years).
Are you sure about that?
Earth’s Magnetic Field Flipped Superfast
Originally posted by MadDogtheHunter
reply to post by MalachiConstant
The last time I had used that same compass, was about 3 weeks ago. At that time, it read like it should and always had read. Yet another reason I noted such a noticeable "change".
Originally posted by MadDogtheHunter
I was digging through some old boxes of junk this morning. And I came across my old compass. One of those good ones that allow you to do line-of-sight measurements and all. I opened it up, and noticed something really odd. It was showing magnetic north towards what would be dead-east from where I was standing.
Originally posted by XtraTL
That research is hotly disputed. It also relates to an event 15 million years ago, not yesterday.
The Steens Mountain rocks have been reported to preserve a change of 6 degrees per day. That rate was so high — imagine trying to navigate when a compass changes by multiple degrees per day — that many scientists challenged the report. One line of argument held that the liquid outer core simply can’t generate magnetic field changes that rapidly. Another held that, even if the changes were happening, they wouldn’t be observable at the surface because the Earth’s internal electrical conductivity would screen the signals out.
The Nevada rocks bolster the idea that such changes could be happening, says Bogue — even if scientists still can’t explain why.
The last stable reversal occurred 780,000 years ago. Some geologists argue the Earth is overdue for a reversal and might even be entering one now, as the geomagnetic field has been getting weaker over the past 150 years or more.
Originally posted by Screwed
I have a military grade los compass and was hiking in the woods behind my house last weekend.
I was showing my boys how to get home using a compass.
I asked them which direction we left the house to enter the woods.
They said WEST.
Good I said.
So which direction do we need to head in order to get home?
EAST? they responded.
Yes, I said.
So, with that I told my oldest to get his compass out of his bob and look at it to determine which way EAST was.
He located EAST.
Here's the problem. It wasn't pointing EAST.
If we would have followed the compass we would have never gotten home.
It was saying EAST was North.
He was saying, "but dad, the compass says to go this way to get home".
I told him "son, the compass must be broken or something. If we go that way we'll never get home".
Later I double checked with my Military Compass and came to the conclusion that I needed to brush up on my
skills a little.
Now, I'm not so sure.
Originally posted by Screwed
I have a military grade los compass and was hiking in the woods behind my house last weekend.
I was showing my boys how to get home using a compass.
I asked them which direction we left the house to enter the woods.
They said WEST.
Good I said.
So which direction do we need to head in order to get home?
EAST? they responded.
Yes, I said.
So, with that I told my oldest to get his compass out of his bob and look at it to determine which way EAST was.
He located EAST.
Here's the problem. It wasn't pointing EAST.
If we would have followed the compass we would have never gotten home.
It was saying EAST was North.
He was saying, "but dad, the compass says to go this way to get home".
I told him "son, the compass must be broken or something. If we go that way we'll never get home".
Later I double checked with my Military Compass and came to the conclusion that I needed to brush up on my
skills a little.
Now, I'm not so sure.