I have recently discovered that it is possible to feel the magnetic field of the earth without any special equipment.
I looked online and found very little literature supporting this....however I found my technique somewhere else entirely.
Magnetism is 'Chi'
The way to feel Chi is how you feel the magnetic field.
This is not a joke - there is a legit technique to feel the magnetic field and thus your direction without any compass or light even.
The actual technique is as follows.
Stand relaxed and hold your arms out to the side of you with your palms facing outwards. Hold this for about 30-60 seconds. Make sure you aren't too tired. Stay relaxed and focus on your breathing and your diaphragm.
Then when you feel like you are feeling you hands get a bit tired shake them gently while they are still being held out.
Then slowly and calmly close your eyes and bring your hands towards each other in front of you, but not touching.
As they approach around 3-5 inches - you will start to feel a slight pull/push/effect. Don't move too much and find the 'edge of this' and then you hands should be across from one another and if you now rotate your whole body around your waste with you hands out, you should feel a slight force on the front and back of your hands - one side should be pushing and the other should have a slight tug....then as you rotate, it will shift between hands.
This is the magnetic field of the earth. You can then find the highest point of tension (E/W) and the points of lowest tension (S/N) and you will feel a direction... It moves from South to the north pole.
So hopefully this helps someone. They don't know shit about science.....
You can take this further, realize that down to the very essence of DNA our bodies are designed to work with magnetism. There are "new" science cures being discovered and the biggest one so far is it's innate ability to trigger cell death and cell growth.... Which in itself could cure cancer. You heard that right.
Oh, and I said "new" because this was discovered a long time ago, but guess why it was tossed into the memory hole....
This explains Leigh lines also and why Humans generally converged on them.
Great topic OP.... If your interested to learn more regarding magnetism basics search out Ken Wheeler on YouTube. Theoreopolous..... Something like that but I'm too lazy right now to do it for ya. His name will suffice.