Earth is giant magnet Compass needle is smaal magnet So compass south polarity attracted of aligned with Earth's nole pole hence north direction. And vice Versa
Besides the distracting music in the background, the guy is bascically trying to say: The Earth is a giant magnet, the needle inside the compass is also a magnet. The magnet's north pole naturally aligns with the opposite pole of the Earth's magnetic field at a spot called the magnetic North. Because like-like repel. Hopefully this helps.
Cool. You all have perfect, intact ears. However when you keep growing older, you might understand this very common problem. I am only saying his video doesn't have standard format used in explanation videos, but has experimental audio-sound adjustments. His video & content is perfect.
All magnet are effected by north poll, but gravity makes it difficult for the magnet. You cannot rotate a car with your hands, but you do that in space. You can not rotate a heavy boat on ground with your hands, but you can rotate a heavy boat with you hands if parked on water. When gravity is somewhat eliminate, then a magnet can rotate in the direction of north poll. In a compass, the needle floats in a liquid that eliminates gravity. That’s how people can use only a needle on top of a tiny leaf, place on water, to find the direction.
Does it work better in 1 location vs another? Let's say I take a compass to New York, would the needle spin more forcefully than if I took the same compass to the equator? I've heard if you take it to the North Pole it will just continuously spin. Does it do the same in the South?
How does the magnetic needle detect north and south that far? Is there a magnetic wave from North Pole to the compass if so how does it travel that far?
Earth has a gigantic magnetic field, not a wave, which is very strong, strong enough to reach distances that far, but not too strong to match your neodymium magnets
Who invented the compass [amongst many other things]? In case you forgot. \ In Chinese, they are called, 指南針 "needle that points south" Europeans use North as the reference.
@livescience a little bit of study is needed for this simple tool that doesnt do what it is believed to do. How can it always point to a constantly changing magnetic field yet stay localized in direction? What is actually happening is it is showing the way towards the back of the planets atmosphere, expressing the forces of velocity imposed on it. Thus when you get close to the "back end" or "front end" in correlation with the vector of our descent towards the sun it will spin. The direction in which the tip pitches shows whether you are at the point where matter goes out from the earth or comes in. The in part of where the force of wind enters the earth, can be felt by added pressure on the body and "north" pitched down. On the opposite end, the great teepee and the "north" pitches up or out. Not hard to figure out if you use common sense.
I KNOW ITS A MAGNET BUT HOW. I HAVE A NORMAL MAGNET(U KNO THOSE OVAL RUGBY BALL SHAPE TOY MAGNETS) BUT IT DOESNT ACT LIKE A COMPASS NOR EVEN BIAS A CERTAIN DIRECTION.
If the earth was a "big magnet" why is it getting weaker over time? Whats causing that? True north is not "at the top", because the earth is always swaying somewhere between 23* and 0* off axis.
I think the compass is proof of our existence of all kinds here; everything is connected, and God taught us that he is the center of this universe. just my curiosity and opinion. I don't know if I really understand compass of how really works and how the universe tell us directions. like the newton gravity and einstein formula. difficult to understand and to explain. i hope one day there is channel who can really explained this. im still confused after i use compass in my phone.
A compass points to the magnetic centre, it must be held perfectly flat to use. A compass doesn't work on a globe, it would point down thru earth, or off into space, never would it point at both poles at the same time!!!
And that’s why you have a stick in the very middle of the compass, that provents it from rotating down ward. The compass are made so it can only rotate in different direction, and not tilt downward.
Sadly, even though this was a mediocre explanation of compasses to begin with, the narrator closed the presentation by saying, An old simple compass may "Not be 100% accurate, but the little swiveling magnetic in your compass is a pretty reliable bet to find your way home". In this day an age of an explosion of useless electronic gadgets ad-nauseam, millenial aged young adults seem to want to discredit so many highly useful tools, and replace them with some electronic version with pretty flasing lights, and a bunch of useless crap on them, because they "look cool". (Regardless of function) While this channel may claim the simulated compass on a modern iphone, is what IS 100% accurate, I can tell you without any doubt, that is not the case. Plus, cell phones run on batteries and batteries go dead. QUICKLY!! Especially when you need them it seems! The truth of the matter is that a simple magnetic compass, inexpensive and basic, if used properly, is accurate and reliable enough to guide you all the way around the world. The accuracy is as good as you're going to get, in any hand held device. BUT, you must know how to use it properly. Standard magnetic compasses have been guiding ships all around the globe, for hundreds of years. Actually, the Chinese were using basic magnetic compasses over a THOUSAND years ago! Crossing oceans, voyaging thousands of miles with no other visual reference, and pinpointing their routes precisely. All with a basic compass. So, there is no reason to downplay this critically important device, or to even imply at all, that even the most basic, simple magnetic compass, is in someway inferior to a new electronic version. Because thats just not the case. As a search and rescue pilot fir many years, I can't even tell you how iften lost hikers are without a compass, or even know how to use one. Sadly, most rely on a stupid cell phone, which ends up dead from a dead battery, and often the hiker ends up the same way!! If you're a hiker, or a boater, please take the time to get an inexpensive simple compass and learn how to properly use it. Carry a regular, paper map in your backpack with your compass. Know how to determine a bearing/heading. Be able to plot a course to a destination on the map. Be able to determine your location on a map with just using a compass. These are all easy beginner tasks, and you can learn it if you apply yourself and invest the time. Even if you rely on a phone, or rely on a battery operated GPS, ALWAYS have a simple magnetic compass and map in your pack, and the knowledge to use them. Because then when all your electronics go dead, which they will, you don't have to be dead along with them. The chances of us finding you in time, are slim. And that's a well know fact among search and rescue workers. So, be able to rely on yourself. Pack these simple items and know how to use them as I stated above, and you'll ALWAYS have a way to get navigate to safety. And that may very well may save your life some day.
Hello sir can i just use a small size world map and can i still navigate the ocean with just using a pocket compass and a small map of the world? I agree with you that's why i always bring my personal compass even though we have compasses onboard ship. I work on ship so i know the emergencies that can possibly happen. In case all equipments are dead at least i have my own pocket compass and can still navigate the sea with it. I'm looking for a map that covers the whole world.
