Astronomy
To get some clear understanding about the uncertainty principle, first, we need to know the quantum hypothesis.
Max Planck suggested that light, X-rays, and some other waves could not be emitted at the arbitrary rate, but in the form of energy packets called quanta.
According to the quantum hypothesis, each quantum--packet-- has certain amount of energy that was greater the higher the frequency of the waves. That implies that at higher frequencies, the emission of even a single quantum would require more energy than that was available. Thus the radiation at high frequencies gets reduced.
In order to predict the future position and velocity of a particle, one has to be able to determine its present position and velocity accurately. The only way to do this is to shine light on the particle and this will indicate its position. To determine more precisely one needs to use light of short wavelength(high frequency). Now, by Planck's quantum hypothesis, one cannot use an arbitrarily small amount of light; one has to use at least one quantum and this quantum will disturb the particle and change its velocity in a way that cannot be predicted. The more accurate one tries to measure the position, the greater will be the disturbance ( as it needs high energy quanta ). In other words, the more accurate one try to measure the position of a particle, the less accurate will be the speed and vice verse
This principle put an end to a notion(came from Newton's theory of gravity) that our universe is completely deterministic ( one can easily predict everything that would happen in the universe, if he knows its present state.)
It is only possible for the one who could observe the present state of universe with out disturbing it.
check this video.
- A Humongous Star Explosion
The "SN 2006gy" explosion took place in the galaxy called NGC 1260, 240 million light-years away. It was 100 times more powerful than most typical supernovas, the brightest and most energetic ever recorded. It was first detected in September 2006, using...
- Wave-particle Duality
What does sexism have to do with wave-particle duality? Not much, unless you have been reading the book reviews and letters in Physics Today. The February 2012 issue includes a review by Robert March of Quantum Physics for Poets by Leon Lederman and Christopher...
- Radio Astronomy
For most of us, the idea of astronomy is something we directly connect to ?stargazing?, telescopes and seeing magnificent displays in the heavens. And to be sure, that is the exciting area of astronomy that accounts for it?s huge popularity. So...
- What Is A Supernova?
There was a star somewhere around the sky staying almost unnoticeable, and got burst out suddenly in to a blistering brightness; it's just a one more Supernova!--if not Nova. The energy and light that was radiated in to the sky during the star's...
- How Radio Astronomy Works
For most of us, the idea of astronomy is something we directly connect to ?stargazing?, telescopes and seeing magnificent displays in the heavens. And to be sure, that is the exciting area of astronomy that accounts for it?s huge popularity. So...
Astronomy
The uncertainity principle by heisenberg
To get some clear understanding about the uncertainty principle, first, we need to know the quantum hypothesis.
Max Planck suggested that light, X-rays, and some other waves could not be emitted at the arbitrary rate, but in the form of energy packets called quanta.
According to the quantum hypothesis, each quantum--packet-- has certain amount of energy that was greater the higher the frequency of the waves. That implies that at higher frequencies, the emission of even a single quantum would require more energy than that was available. Thus the radiation at high frequencies gets reduced.
In order to predict the future position and velocity of a particle, one has to be able to determine its present position and velocity accurately. The only way to do this is to shine light on the particle and this will indicate its position. To determine more precisely one needs to use light of short wavelength(high frequency). Now, by Planck's quantum hypothesis, one cannot use an arbitrarily small amount of light; one has to use at least one quantum and this quantum will disturb the particle and change its velocity in a way that cannot be predicted. The more accurate one tries to measure the position, the greater will be the disturbance ( as it needs high energy quanta ). In other words, the more accurate one try to measure the position of a particle, the less accurate will be the speed and vice verse
This principle put an end to a notion(came from Newton's theory of gravity) that our universe is completely deterministic ( one can easily predict everything that would happen in the universe, if he knows its present state.)
It is only possible for the one who could observe the present state of universe with out disturbing it.
check this video.
- A Humongous Star Explosion
The "SN 2006gy" explosion took place in the galaxy called NGC 1260, 240 million light-years away. It was 100 times more powerful than most typical supernovas, the brightest and most energetic ever recorded. It was first detected in September 2006, using...
- Wave-particle Duality
What does sexism have to do with wave-particle duality? Not much, unless you have been reading the book reviews and letters in Physics Today. The February 2012 issue includes a review by Robert March of Quantum Physics for Poets by Leon Lederman and Christopher...
- Radio Astronomy
For most of us, the idea of astronomy is something we directly connect to ?stargazing?, telescopes and seeing magnificent displays in the heavens. And to be sure, that is the exciting area of astronomy that accounts for it?s huge popularity. So...
- What Is A Supernova?
There was a star somewhere around the sky staying almost unnoticeable, and got burst out suddenly in to a blistering brightness; it's just a one more Supernova!--if not Nova. The energy and light that was radiated in to the sky during the star's...
- How Radio Astronomy Works
For most of us, the idea of astronomy is something we directly connect to ?stargazing?, telescopes and seeing magnificent displays in the heavens. And to be sure, that is the exciting area of astronomy that accounts for it?s huge popularity. So...