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Re: Facing South

PostPosted: Mon Aug 12, 2019 8:41 pm
by everything
animals who know how to return to the same spot - like homing pigeons - don't know how they do it. humans also don't know how they do it.

Re: Facing South

PostPosted: Mon Aug 12, 2019 9:39 pm
by Bao
everything wrote:...how to return to the same spot .... humans also don't know how they do it.


Especially when they are drunk...

Re: Facing South

PostPosted: Mon Aug 12, 2019 11:59 pm
by wiesiek
I disagree with this statement, Bao
All pigeons know, that drunken humans getting 6th sense, and even if on the end can`t match the door`s key, but way to home will find :)

Re: Facing South

PostPosted: Tue Aug 13, 2019 6:53 am
by LaoDan
The recent study looked at the large magnetic field of the Earth, not the smaller fluctuations in terrain used for mapping local variations, like are used by homing animals. Those local variations are less than 1% of the strength of the Earth’s magnetic field.

Since the study showed only marginal recognition of the strong magnetic fields, then it is doubtful that humans have the sensitivity to detect variations that are less than 1% of what the researchers tested. Essentially, only the ability to detect large magnetic field variations was possible, and only when testing northern hemisphere individuals with the fixed field as would be for the northern hemisphere (when they flipped the fixed field to that of the southern hemisphere, the northern hemisphere participants lost their detection of magnetic field changes).

Re: Facing South

PostPosted: Tue Aug 13, 2019 7:46 am
by LaoDan
Bao wrote:A magnetic sense or sensativity for geographical orientation is nothing new. More than 20 years ago scientists discovered that we might have an inbuilt compass (in the nose) that humans probably could use pretty good for many thousand years ago. Many mammals could have it and use it instinctively to orient them.

https://anthropology.net/2006/11/21/the ... uman-nose/

Having magnetite in the nose does not necessarily mean that humans can use that for detecting magnetic fields. The recent study indicated that cryptochromes in the eye are not the sensory mechanism that humans may have for detecting geomagnetic forces, even though our eyes do contain cryptochromes. However, ferrimagnetic minerals (locations not determined in the recent study) are consistent with the current findings. More studies would be needed.

Re: Facing South

PostPosted: Tue Aug 13, 2019 2:25 pm
by Steve James
Animals use their ability to perceive magnetic fields instinctively. If humans had it, they'd use it instinctively. However, salmon and sea turtles use it to return to spawning grounds. Salmon die. Sea turtles split up to live their solitary lives at sea. It's not clear that they are conscious of their ability. If humans are unconscious of that ability, they'll use other means --and create tools that make up for physiological inabilities.

https://www.livescience.com/1111-homing ... -home.html

Re: Facing South

PostPosted: Wed Aug 14, 2019 5:46 am
by LaoDan
Just because an organism has something in common with other organisms does not mean that they have the potential for the some abilities. For example, snakes have the genes for legs, but that does not mean that snakes can walk, and in the rare case where a snake expresses the leg gene their resulting legs are non-functional. Closer to home, humans have noses and a sense of smell, but we have nowhere near the sensitivity of canines (tens of thousands difference in sensitivity), and humans cannot accomplish the feats that dogs can!

Humans’ having a mechanism to be able to detect geomagnetic forces does not mean that we potentially share the homing abilities demonstrated by other animals. It is not a matter of not practicing diligently enough, it is an inherent lack of capability (our mechanism does not have the sensitivity).

Re: Facing South

PostPosted: Wed Aug 14, 2019 12:36 pm
by wayne hansen
All humans have the potential to learn internal martial arts but how many suceed

Re: Facing South

PostPosted: Wed Aug 14, 2019 1:33 pm
by LaoDan
wayne hansen wrote:All humans have the potential to learn internal martial arts but how many suceed

At least training internal martial arts is working on something that is potentially attainable, rather than striving for something that our egos only think should be possible. Train as diligently as desired, and nobody will be able to train their sense of smell to be anywhere close to that of a dog.

Re: Facing South

PostPosted: Wed Aug 14, 2019 1:57 pm
by Bill
I don't know about that. When I train hard, I smell like a dog.

Re: Facing South

PostPosted: Wed Aug 14, 2019 4:02 pm
by Steve James
Humans have the ability to echolocate through sound, and they have the necessary organ to do so. But, how many people can actually do it? How long would ya'll imagine it would take to develop the ability through practice?

Btw, humans have trace particles of radioactive isotopes, but it doesn't mean they can detect radioactivity --even though they can be affected by it.