Like other viewers, I'm very grateful to your series of uploads and feel very fortunate to be able to watch them! I had a thought that perhaps adding a more accurate set of subtitles than the current auto-generated one could aid more non-native English speakers (like myself) in understanding this excellent lecture, so tried my best to write a set and submitted it several minutes ago. May I please welcome any other TH-camr who could view it or the Channel's manager (if luck and time allow) to have a review, so that perhaps after it's enhanced/approved it can be publicised and used? Thanks for reading!
Wi Without understanding the principle of magnetism, the would would not have reached what it did today, no technology, No motors, no progress at all. We are grateful to all great minds that helped us made this break grounding progress and discover these cutting-edge technologies. And thank to Sir Lawrence Bragg 🎉🎉
Superb video.... I love to see the magnetic field lines formed by the iron filings.. this is the things we always read in books but never practically see...
.I would not say "and that is that" about magnets consists of small magnets. Magnetisme is the kinetic energy of the electric field and that is that! . If you send an electric charged particle out in space you and everybody that is not moving relative to you can measure a magnetic field around it. But somebody moving with the particle cannot measure any.
So i guess it correctly that old days molten steel were under the magnetic influence of earth magnet, so while cooling the alignment made the steel permanent magnet. But what could have influenced earth's magnetic field, is it sun
CHANAKYA SINHA, I think you are correct, but the early stages of the Earth’s development are still something of a mystery. The Sun is, indeed, a massive magnet. It is not yet known exactly what the influence of the Sun’s magnetic field is, but I wonder if it influences the Earth’s climate and weather in some ways.
@@thispersonwriting1889 considering sun, it has so much randomness in their molecular energy that even for a single nanosecond, there is one out of infinite possibility that all electrons and plasma will have motion such that it can create magnetic field ... What else could be possibly generating that field
The Earth's magnetic field is created by flows of molten iron-nickel alloy in the outer core. The flows are driven by convection due to heating from radioactive decay in the core. The sun's magnetic field has almost no effect on Earth: at this distance it's very weak. To magnetise something the size of the core (1600 million million million tonnes of metal) you would need a very strong external field: much stronger than the sun's field and strong enough to cause problems at the surface.
@@DANTHETUBEMAN A molten metal cannot be a permanent magnet, that is true, but a molten metal can create a magnetic field. By analogy, copper cannot be a permanent magnet, but it can create a magnetic field.
"Magnets are magnets because they are made up of little magnets... and we will leave it at that." I love this man.
Great men talk great sentences 🤔
Apparently, I've been nagging by myself on the same question, but all the time, that simple answer was under my bare 👀 😂🤦good 👍 point 👉.
Thanks a lot! These archives are so awesome
Like other viewers, I'm very grateful to your series of uploads and feel very fortunate to be able to watch them!
I had a thought that perhaps adding a more accurate set of subtitles than the current auto-generated one could aid more non-native English speakers (like myself) in understanding this excellent lecture, so tried my best to write a set and submitted it several minutes ago. May I please welcome any other TH-camr who could view it or the Channel's manager (if luck and time allow) to have a review, so that perhaps after it's enhanced/approved it can be publicised and used?
Thanks for reading!
Wi
Without understanding the principle of magnetism, the would would not have reached what it did today, no technology, No motors, no progress at all. We are grateful to all great minds that helped us made this break grounding progress and discover these cutting-edge technologies. And thank to Sir Lawrence Bragg 🎉🎉
Brilliant people can explain complex phenomena in simple terms.
Superb video.... I love to see the magnetic field lines formed by the iron filings.. this is the things we always read in books but never practically see...
The joy when the little loadstone picked up a respectable beard of iron filings made this video 6/5 stars. Excellent video... Simpler times!
These are so awesome. Thanks for everything you do Ri.
I no that moving a magnet creates an electric current, so earth is a magnet as we understand, does it create current as we move through space?
Very interesting indeed, it makes me think 😁😀😷😇
.I would not say "and that is that" about magnets consists of small magnets. Magnetisme is the kinetic energy of the electric field and that is that! . If you send an electric charged particle out in space you and everybody that is not moving relative to you can measure a magnetic field around it. But somebody moving with the particle cannot measure any.
Man No subtitles if we download it
thanks to technology i am able to watch these
New video please
very nice
for a spanish speaker...hearing iron is pronunced aaan....we are mesmerized hehehe
So i guess it correctly that old days molten steel were under the magnetic influence of earth magnet, so while cooling the alignment made the steel permanent magnet. But what could have influenced earth's magnetic field, is it sun
CHANAKYA SINHA, I think you are correct, but the early stages of the Earth’s development are still something of a mystery.
The Sun is, indeed, a massive magnet. It is not yet known exactly what the influence of the Sun’s magnetic field is, but I wonder if it influences the Earth’s climate and weather in some ways.
@@thispersonwriting1889 considering sun, it has so much randomness in their molecular energy that even for a single nanosecond, there is one out of infinite possibility that all electrons and plasma will have motion such that it can create magnetic field ... What else could be possibly generating that field
The Earth's magnetic field is created by flows of molten iron-nickel alloy in the outer core. The flows are driven by convection due to heating from radioactive decay in the core. The sun's magnetic field has almost no effect on Earth: at this distance it's very weak. To magnetise something the size of the core (1600 million million million tonnes of metal) you would need a very strong external field: much stronger than the sun's field and strong enough to cause problems at the surface.
A molten core cannot be magnetic, I agree the electric sun has huge magnetic field
@@DANTHETUBEMAN A molten metal cannot be a permanent magnet, that is true, but a molten metal can create a magnetic field. By analogy, copper cannot be a permanent magnet, but it can create a magnetic field.
I heard magnets are magnets because all the electrons spin in same direction which creates magnetic field, i think.
Cool
Mr Coates fan club
对，哪原理北挪幼众助，，，後电，後富康忘而成电动碰碰車了，師和太夫人忘抽久，，，?。
Just backwards from the western world, ancient Egypt had there more and south opsit from today's times,,, pole switch?
Brill