Question

someone teach me interesting things in the field of physics

Answer 1

I guess that it depends on what you find interesting.
So, here goes.
In my first year at UK secondary school, Mr Fairbairn, excellent physics teacher, demonstrated a few things.
In one demonstration, he’d have a long metal rod, which was supported on the bench top. It was anchored at one end, and the other end was free to move. I think that there was a hole in the rod on the free end. He used, I think, a Bunsen burner to heat the free end of the rod up until the hole was beyond the support of the free end. Then, he put a metal pin into the hole. Then he took the Bunsen burner away, and allowed the long metal rod to cool down. After a while, there was a very, very loud crack/bang sound, as the metal pin broke. Mr Fairbairn explained that as the metal rod was heated increased its length. When the rod cooled back down again, it contracted. However, the pin was “preventing” it from contracting. So, the force of the contraction broke the pin, hence the bang.
Here in the UK, whenever the weather gets warm the railway lines get longer by linear expansion. This leads to them buckle, which leads to lines being closed, which leads to travellers’ anger, and maintenance jobs for people who work on railway lines.
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Answer 2

Just tell your interest.As per Physics is considered everything in Physics is interesting So just tell what you want to study.

Answer 3

Let's put this another way:

'SOmeone teach me' is a passive statement

Why not

"I'm going to LEARN interesting facts about physics"?

Just about every subject you might be interested in is covered here:
http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html

And it is in TREE structure so you can follow the topics that you find interesting as they lead you to more learning

Answer 4

Mr Fairbairn also demonstrated what happens to a "permanent" bar magnet, or three, when you warm one of them up. The sort of magnet that you may have holding notes up on your fridge door, and the sort of magnet which helps to close the fridge door, and the sort of magnet that's used in a compass for finding directions such as north. At least I think he did. Basically, he took a "permanent" magnet, with, possibly a load of iron filings to show that the magnet was a magnet. Then he heated the magnet with a Bunsen burner. And, lo and behold, at a certain temperature the filings dropped off the "permanent" magnet, which wasn't so permanent after all. It depended on the temperature, it seems, and this temperature was called the Curie temperature after the Nobel Prize winning physicist who found it. That was Pierre Curie, and his wife, Marie Curie was a dab hand at working out things about radioactivity. She got a Nobel prize in physics as well, and her name is given to a unit of radioactivity. Madame Curie (she may have had some French connection) possibly died of what's now called "radiation poisoning", because when she and her colleagues were doing their research, the TOXICITY of radioactive elements was not well understood. Nowadays, anyone working in the field of anything radioactive gets things like radiation badges to wear to check the dose of radiation they've been exposed to (bit like being exposed to ultra violet light on a very sunny day, and wondering why you get ill later) and Geiger counters (I think that Geiger may have got a Nobel prize).
So, maybe that gives you some idea of the sorts of ideas in physics, and, mostly you are looking at the efforts of Nobel prize winners when you read something in physics/science.
Personally, I think it's an amazing thing. But, then, that's just me.

Answer 5

I've just written a whole pile of stuff and, somehow or other, it's all got deleted.
The stuff was about a "Camera obscura" in Edinburgh, Scotland, UK, which basically is an optical device which allows people such as tourists in a darkened room (room = camera, i think) to see what's going on in the streets around them. There's no electronics in it, and it can scan probably round in a circle. Brilliant device.

In the science museum in London, UK, there's a thing called a "Foucault pendulum", after the Frenchman who designed it. It's a very heavy mass suspended from the ceiling of the several stories high London science museum, and it moves back and forth very slowly. I tried to work out how it was connected to the ceiling, but my brain exploded, so I gave up. The pendulum moves so slowly, that the earth has time to rotate underneath it, and the area under the pendulum bob/mass is designed by the museum to trace out this paths.
To help explain this thing, someone possibly called CORIOLIS popped up with an idea. If you have an atmosphere with a high pressure and a low pressure, then air should flow from high to low. That's how water taps work, most fluids work in fact. But, if the air flow/wind is across the earth, and the earth is rotating underneath the air flow, then relative to someone on the earth, the wind will not be from high to low, it will be angled. This, roughly, is the CORIOLIS EFFECT.
I thought about this, and had a conversation with the UK's met office. I tried to suggest that their weather forecasters should call the winds and the wind directions that they put on the weather maps the CORIOLIS WIND, because it seems to be flowing ROUND the low pressure, and not INTO the low pressure. But they didn't agree with me. As they're bigger than me I gave up.

Answer 6

Interesting things about physics.
I guess you could call this “the beginnings of mobile phones and global communications”.
Tens possibly hundreds of years ago, physicists were experimenting with what came to be called “electricity and magnetism”.
The physicists included the likes of Michael FARADAY, James Clerk MAXWELL, Heinrich HERTZ, AMPERE, Signor MARCONI, and many others.
Between them they discovered things about electromagnetic radiation, some – for example Faraday – by experiment; others, eg Maxwell, by mathematical theory.
It could be said that a landmark discovery or demonstration was what was called a “spark gap”. Basically, an experimenter rigged up an electrical circuit which was designed to make an electrical spark (ie lightning, in a thunder storm just on a smaller scale) jump across a small gap between two bits of metal. If there was another gap, seemingly independent and disconnected from the rigged up one, somewhere else, then when the spark was triggered on the electrical rig (the TRANSMITTER), there was a similar spark on the seemingly independent one.
It seemed as though not only had a spark (small lightning flash) jumped one gap (the TRANSMITTER), it had ALSO induced a similar effect in a RECEEIVER at some short distance away.
If this spark transmitter, and spark receiver could be induced in large distances, that would develop the idea.
As with a lightning flash in a storm, the spark in the gap is intermittent. It’s a series of PULSES – a very early version of DIGITAL INFORMATION, in fact (just a hundred or so years ago).
And, James Clerk MAXWELL had done a lot of mathematical calculations to describe what could have been going on.
All this huge scientific effort seems to have culminated in MAKING THE PULSES LAST A LONG TIME. From fractions of a second, into seconds, and then into minutes until eventually the SPARK PULSES were continuous. A very loose analogy here, might be the cylinders of a car. They give pulses of force to the engine, but so many of them in a short time period that it feels like continuous motion.
If one of the cylinders misfires, then the passengers/driver of the car feels the jolt, much like you get a surprise when there’s a lightning flash, or a spark flash.
After they had worked out how to generate, transmit, and receive CONTINUOUS WAVE electromagnetic waves, a development occurred in which the continuous wave could be interrupted – in a way back to the spark gap but with the very big difference that a person could consistently interrupt the continuous wave – called a CARRIER WAVE – in a similar way that, say, a lighthouse uses a very bright light source which shines a beacon out to sea and the beacon beam rotates to communicate with shipping. The sailors learn to recognise a light which is from a lighthouse.
Turning the carrier wave off and on became the basis of what would be called TELEGRAPHY, RADIO OR WIRELESS, or by copper wire. A “language” that was used in this was in sending messages from the transmitter to receiver was designed by a US engineer called SAMUEL MORSE, and is called MORSE CODE. During the second world war, between 1939 and 1945, this form of communication was heavily used by both sides in the fighting.
From switching off and on – MORSE DIGITAL – there came transmitting and receiving a CONTINUOUS SIGNAL, carried on the carrier wave. That continuous signal became the human voice, and that became speech/sound/music/picture transmission and reception.
A major component of all of these developments was the electronic components which were used to build the equipment.
Basically, things got SMALLER.
And you can fit more small things into a box than you can big things.
If the box happens to be a MOBILE PHONE or and iPad or whatever else is on the market in 2016, then you’ve got yourself the same transmitter and receiver, just LARGE SCALE INTEGRATED to allow the device to have a computer built into it, and to access the internet.
Most mobile phones/cell phones/wifi links/ have something on them which indicates the “signal” that they are receiving and transmitting. That signal is, in principle, the same thing as a flash of lightning or a spark jumping across a spark gap.
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Answer 7

thank you, thank you, thank you, i will look at those @osprey