Cell phone radiation

[RWebb]

I'm not here to spoon feed. I gave the name of the guy who discovered this, the magnetic material, and other info.

If you are too lazy to use Google that is not my problem.

Now stop acting like an ass, or go to PARF.

[Sooner or later]

I did. There is nothing that says it is fact. A plausible theory. Evidence points in that direction but at the current time is is not a fact.

If it is a fact and not a theory it should be easy for you to produce data that proves your statement as correct. No maybe, possible, or could

[Sooner or later]

Is that how science works? Make a statement with no proof and then when asked for proof you start calling names?

[john70t]

Originally Posted by gordner

Birds navigate by essentially a natural compass with absolutely no similarity to radar systems.

Is seeing magnetic north considered (one-way) 'radar'?

https://www.newscientist.com/article/dn13811-birds-can-see-the-earths-magnetic-field/
It has been debated for nearly four decades but no one has yet been able to prove it is chemically possible. Now good evidence suggests that birds can actually “see” the lines of the Earth’s magnetic field.

[Sooner or later]

https://www.scq.ubc.ca/the-compasses-of-birds/

One theory posits that certain birds’ brains contain magnetite, otherwise known as iron oxide[3]. Magnetite is a naturally occurring magnetic compound that has been found in animals ranging from bacteria to mammals[4]. With physical magnets in their brains, birds would be able to detect the magnetic fields created by the North and South Poles. Magnetite has been found in the upper beaks of several birds, but until recently, there has been little evidence that the substance is connected with navigation[5].

https://ssec.si.edu/stemvisions-blog/how-do-birds-navigate

Magnetite is a magnetized rock, which may act as a tiny GPS unit for the homing pigeon by giving it information about its position relative to Earth’s poles. Researchers have also found some specialized cells in birds’ eyes that may help them see magnetic fields.

It is thought that birds can use both the beak magnetite and the eye sensors to travel long distances over areas that do not have many landmarks, such as the ocean.

[masraum]

Originally Posted by sammyg2

LOL I knew a guy who would count to 5 before opening the door on the microwave.
I asked why, he said it was to give all the microwaves plenty of time to go away so he didn't get hit with them.

Don't you know it!

[masraum]

Originally Posted by Sooner or later

https://www.scq.ubc.ca/the-compasses-of-birds/

One theory posits that certain birds’ brains contain magnetite, otherwise known as iron oxide[3]. Magnetite is a naturally occurring magnetic compound that has been found in animals ranging from bacteria to mammals[4]. With physical magnets in their brains, birds would be able to detect the magnetic fields created by the North and South Poles. Magnetite has been found in the upper beaks of several birds, but until recently, there has been little evidence that the substance is connected with navigation[5].

https://ssec.si.edu/stemvisions-blog/how-do-birds-navigate

Magnetite is a magnetized rock, which may act as a tiny GPS unit for the homing pigeon by giving it information about its position relative to Earth’s poles. Researchers have also found some specialized cells in birds’ eyes that may help them see magnetic fields.

It is thought that birds can use both the beak magnetite and the eye sensors to travel long distances over areas that do not have many landmarks, such as the ocean.

that's all vestigial.

Now they all use Waze or Google Maps.

[KFC911]

Originally Posted by sammyg2

LOL I knew a guy who would count to 5 before opening the door on the microwave.
I asked why, he said it was to give all the microwaves plenty of time to go away so he didn't get hit with them.
I started to explain that whole 180,000 miles per second thing, but instead just said "good plan".
.

I always wait until the clock hits 0:00, but wait a few nanoseconds...but BEFORE the beep occurs. Otherwise yer just askin' fer trouble...

[john70t]

Up-down. Left-right. There is a wall of electrons bouncing around still.

And you're going to stick a hand in the middle of that?
No sireee!

[Fly Mach .86]

Chem trails is a much more dangerous threat.

[tcar]

Originally Posted by RWebb

I'm not here to spoon feed. I gave the name of the guy who discovered this, the magnetic material, ......

Except you gave the wrong name...

It's Wolfgang Wiltschko , not Walt...

[Chocaholic]

Originally Posted by RWebb

Google is your friend

Very funny. Everyone knows...Google causes cancer.

[Sooner or later]

https://www.nationalgeographic.com/news/2007/9/birds-can-see-earths-magnetic-field/

The finding strongly supports the hypothesis that migratory birds use their visual system to navigate using the magnetic field.

"The magnetic field or magnetic direction may be perceived as a dark or light spot which lies upon the normal visual field of the bird," Heyers said, "and which, of course, changes when the bird turns its head."

Scientists not involved with the study said it is impressive and well done, but cautioned that there are more pieces to the puzzle of how birds navigate on their long migrations.

"An animal that has to migrate over great distances needs to have both a compass and a map," said Cordula Mora, a biologist who recently completed her postdoctoral research at the University of North Carolina, Chapel Hill.

Mora's work suggests that birds may use magnetic crystals in their beaks to sense the intensity of the magnetic field and thus glean information on their physical location. (Related news: "Magnetic Beaks Help Birds Navigate, Study Says" [November 24, 2004].)

https://www.forbes.com/sites/trevornace/2018/04/04/we-finally-know-how-birds-can-see-earths-magnetic-field/#14a6987020e1

While scientists have known for quite some time that birds can see Earth's magnetic field, it was unclear exactly how birds are able to visualize the magnetic field. Two recent studies from researchers at Lund University in Sweden and Carl von Ossietzky University Oldenburg in Germany discovered that the ability is a result of a special protein in bird's eyes. The two papers studied European robins and zebra finches and found evidence for an unusual eye protein called Cry4

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3552369/#!po=86.5079

The magnetite-based receptors in the beak of birds and their role in avian navigation
R. Wiltschko and W. Wiltschko

However, if this compass is disrupted by certain light conditions, migrating birds show ‘fixed direction’ responses to the magnetic field, which originate in the receptors in the beak. Together, these findings point out that there are magnetite-based magnetoreceptors located in the upper beak close to the skin. Their natural function appears to be recording magnetic intensity

The magnetite-based receptors in the beak, in contrast, seem to contribute to the processes that determine the course to be pursued, the avian ‘map’ mechanism. In view of this, it appears most likely that the iron-rich structures mediate information on magnetic intensity.

The hesitance of control pigeons to leave within the anomaly seemed to reflect confusion caused by the irregular magnetic conditions they encountered when flying around. These birds needed some time to realize that the magnetic field was not reliable and finally turn to other, non-magnetic cues. The birds with their beak anesthetized, in contrast, being deprived of the irregular magnetic input, seemed to turn to other cues right away.

Behavioral evidence indicates that there are magnetoreceptors in the beak of birds. These receptors include magnetite, as indicated by the pulse experiments, and they mediate their input to the brain by the ophthalmic nerve and the trigeminal system. They are not involved in the avian magnetic compass; instead, they seem to normally convey information on magnetic intensity. Their natural function appears to be to provide birds with magnetic information as one factor in the multi-factorial navigational ‘map’—not only homing pigeons within their home region, but also migrants when they return to their familiar breeding site or wintering area.

Future histological studies will have to identify their true location and show details of their structure.