"smart" phones and magnets
Aug 11, 2021 10:40:29 #
I made an interesting discovery last month. I had just purchased a new iPhone and a case that would hold a credit card and a few other minor things. I liked it for that reason and the part of the case protecting the front could be folded back and used as a stand for watching videos or whatever. It was held closed by a couple of small magnets. Perfect! Except the magnets affected the compass, level, and my star locater apps! They just stopped working! Changed out the case for a different one without magnets and everything is working just fine. Something to think about!
Aug 11, 2021 10:46:32 #
Yea, magnets will do that to compass sensors.
Just as old fashioned (hand held) compasses should not be near ferrous metals or electronics when you use them.
Just as old fashioned (hand held) compasses should not be near ferrous metals or electronics when you use them.
Aug 12, 2021 05:39:34 #
chrissybabe
Loc: New Zealand
GreenReaper wrote:
I made an interesting discovery last month. I had ... (show quote)
Just hope that the designer never has anything to do with the design of a plane or anything that transports people.
Where do these people get trained ?
Aug 12, 2021 06:48:36 #
chrissybabe wrote:
Just hope that the designer never has anything to do with the design of a plane or anything that transports people.
Where do these people get trained ?
Where do these people get trained ?
In our schools...
Just some of the stuff they're NOT teaching in school anymore...
Either that or kids are not interested in learning stuff anymore........
Aug 12, 2021 06:52:33 #
chrissybabe
Loc: New Zealand
Longshadow wrote:
In our schools...
Just some of the stuff they're NOT teaching in school anymore...
Just some of the stuff they're NOT teaching in school anymore...
Hmmm. No brand mentioned for the case. I suspect it might have been a tofu-dreg case.
Aug 12, 2021 07:09:59 #
Longshadow wrote:
Yea, magnets will do that to compass sensors.
Just as old fashioned (hand held) compasses should not be near ferrous metals or electronics when you use them.
Just as old fashioned (hand held) compasses should not be near ferrous metals or electronics when you use them.
Hence Magnetic North and True North.
True north is a fixed point on the globe. ... Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field. What is interesting is that the magnetic North Pole shifts and changes over time in response to changes in the Earth's magnetic core.
Aug 12, 2021 07:20:27 #
OnDSnap wrote:
Hence Magnetic North and True North.
True north is a fixed point on the globe. ... Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field. What is interesting is that the magnetic North Pole shifts and changes over time in response to changes in the Earth's magnetic core.
True north is a fixed point on the globe. ... Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field. What is interesting is that the magnetic North Pole shifts and changes over time in response to changes in the Earth's magnetic core.
True, that's why one can change the amount of deviation in the compass program to compensate for one's location on the globe.
Aug 12, 2021 07:25:41 #
Not all phones have a magnetic compass sensor in them.
Mine does, I have yet to check my wife's phone.
Some phones without the compass sensor simply calculate the direction based on movement information in the GPS program.
If you don't move, it can't tell you what direction you are going, only remembering your last movement.
Mine does, I have yet to check my wife's phone.
Some phones without the compass sensor simply calculate the direction based on movement information in the GPS program.
If you don't move, it can't tell you what direction you are going, only remembering your last movement.
Aug 12, 2021 11:13:56 #
Longshadow wrote:
In our schools...
Just some of the stuff they're NOT teaching in school anymore...
Either that or kids are not interested in learning stuff anymore........
Just some of the stuff they're NOT teaching in school anymore...
Either that or kids are not interested in learning stuff anymore........
Agree
Aug 12, 2021 11:17:45 #
Even the North Star Polaris will not be true north in 6000 years. Even now it's not quite true north. The earths axis not only tilts, but has a wobble causing the change.
Aug 12, 2021 11:25:25 #
alberio wrote:
Even the North Star Polaris will not be true north in 6000 years. Even now it's not quite true north. The earths axis not only tilts, but has a wobble causing the change.
Aug 12, 2021 11:32:04 #
Longshadow wrote:
I also believe it is the main reason for whatever climate change is happening.
Aug 12, 2021 11:41:03 #
alberio wrote:
I also believe it is the main reason for whatever climate change is happening.
Could VERY well be!
I found a temp chart that has cyclic hot & cold periods of varying degrees over MANY many years!
So tell me it's not cyclic.
Aug 12, 2021 11:50:35 #
Longshadow wrote:
Could VERY well be!
I found a temp chart that has cyclic hot & cold periods of varying degrees over MANY many years!
So tell me it's not cyclic.
I found a temp chart that has cyclic hot & cold periods of varying degrees over MANY many years!
So tell me it's not cyclic.
👍👍👍
Aug 12, 2021 13:57:40 #
StanMac
Loc: Tennessee
I can never get an accurate compass reading on my iPhone compass when in my car. Why is that? I didn't think there was anything magnetic in a car except possibly the magnets in the alternator.
Stan
Stan
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