South pole Definition and 22 Threads

In many books, the direction of the magnetic field is mentioned as north to south. It says they have marked it because the north pole of the compass faces to south. But why can't we say the direction is the opposite of it as the south also attracts to north? When I browsed answers, most replies...

what would happen if north pole of Earth becomes south pole and south becomes north ? What would be the chenges on Earth's climate or any other changes ??

Dear PF Forum, In January 1912, Scott reached South Pole and found Amundsen flag. So, in millions of km square white place, Scott reached the very spot that Amundsen posted his (Amundsen) flag. How was the method? Considering there were no GPS back then. Could Scott navigate very precisely? Or...

Hey guys, take a look at this question if you may Suppose the moon, instead of a sphere, is a disc orbitating the Earth ( the moon's total mass is equal to the disc's total mass), the intern radius of the disc is equal to half the distnce between moon and Earth's center of mass and the external...

Sweeping over the south pole of Mars An unusual observation by Mars Express shows a sweeping view over the planet's south polar ice cap and across its ancient, cratered highlands. Continue reading...

I have several bar magnets with the north and south poles labeled on them. It is my understanding that a compass itself is a tiny magnet and the north (often the red part of the compass) end is itself a north polarity. This means that this end would point towards a south pole of a magnet. From...

http://arxiv.org/abs/1307.5830 but its from gravitational lensing not primordial gravity waves so guess we are still waiting for those, but a good sign methinks.

Homework Statement The magnetic field strength at the South Pole is around 66μT, and magnetic field lines point out of the Earth perpendicular to the surface. The sled is a metal square of side 0.95 m (with non-conducting wooden slats in between). What is the magnetic flux through the sled...

I just posted about the new parameters here: https://www.physicsforums.com/showthread.php?p=4152380#post4152380 Basically the new numbers look rather close to what Jorrie already put as the default in his calculator. zEQ looks familiar. Hubble rate 70 looks familiar :biggrin: Here's the...

In South Pole, In which direction will the sun rise?

I have been trying to determine the fundamental group of S^2 union a line connecting the north and south pole by using the Seifert Van Kampen Theorem. But every time I try and pick my two subsets U and V they are either not open or not arcwise connected or their intersection isn't particularly...

South Pole colder than the north pole. why ? Hello .. I have a question .. Why the South Pole colder than the north pole ? (for the earth).

can a small nickel/iron asteroid brought near Earth (matching its solar orbital velocity) and soft landed at the south pole where Earth's rotation is not an issue?

Hi , I wonder why the image of the south pole in google Earth is blurred ?

Hello all, just a few problems that I've worked through, just clarifying if I'm on the right track. Thank you in advance. 1.) The radius of the Earth is 6378.1 km and completes one revolution per day. Calculate the difference in apparent weight between a person of 65kg mass, standing on the...

What would be the linear speed of body in Antartica standing on a south pole.

Homework Statement The south pole of the circular motion is labeled "O" and it's the center of the xOy axes. The point leaves "O" to the right increasing it's positional vector(\bar{}r) dimension and the \alpha angle (the angle is between the positional vector and the Ox axis). The force that...

Hi, I am wondering what determines where these are on a magnetic object. For instance, on a sphere, why should there be a north pole and south pole at points rather than others. To make myself clearer, I am not asking why the south and north are opposite each other, but what determines those...

Not sure if this should be in engineering or physics section. Sorry if I got it wrong. How do I determine the north and south pole in an electromagnet? Do electromagnets have a constant N or S pole? I am making a locking device where a neo magnet will hold a lid down tightly by sticking...

Hello everyone, I just read that in a loop of wire if the current is anticlockwise that part is a north pole. I'm just wandering what do they mean by this. I thought only magnets have north poles. Any help would be appreciated. Thanks :smile:

with an odd shaped magnet eg a cone .. apex = N / base = S is the strength of the magnet the same at each pole ?