Are you ready for a mind-bending journey into the concepts of 'nothingness' and 'vacuum'? This video delves deep into 8 fascinating questions that could revolutionize our understanding of the universe and existence itself. Prepare to have your perception of reality challenged as we explore the cutting-edge of physics and cosmology!

Does 'nothing' exist, or is there only 'quantum foam'?
According to quantum mechanics, even the most perfect vacuum isn't truly empty. We'll explore how the Heisenberg uncertainty principle and quantum field fluctuations show that 'nothingness' is actually a dynamic environment where particle-antiparticle pairs constantly pop in and out of existence. Discover the mind-boggling concept of quantum foam and how it challenges our classical notions of empty space.

Does "The Schwinger Effect" demonstrate "something from absolutely nothing"?
The Schwinger effect suggests that a sufficiently strong electromagnetic field can produce electron-positron pairs from the vacuum. We'll delve into this fascinating phenomenon and discuss how it might represent a practical application of Einstein's famous E=mc² equation, showing how energy can be converted into matter. Learn about the recent experiments using graphene that have brought us closer to observing this effect in the laboratory.

Can quantum fluctuation potentially create a universe from 'nothing'?
Quantum mechanics and inflationary theory propose that our universe may have arisen from quantum fluctuations. We'll explore the mind-bending idea that the entire cosmos could have emerged from 'nothing' and examine the theoretical frameworks that support this concept. Discover how the laws of quantum mechanics might allow for the spontaneous creation of space, time, and matter.

How Does Hawking Radiation Convert Vacuum Energy into Detectable Matter?
Stephen Hawking's groundbreaking theory explains how quantum fluctuations near a black hole's event horizon can result in the creation of real particles. We'll dive into the fascinating world of black hole thermodynamics and explore how this process leads to the gradual evaporation of black holes. Learn about the information paradox and its implications for our understanding of quantum mechanics and gravity.

How did inflationary cosmology turn 'nothing' into a universe brimming with galaxies and stars?
The theory of cosmic inflation provides a compelling explanation for how the universe rapidly expanded in its earliest moments. We'll explore how this process amplified quantum fluctuations into the large-scale structures we see today. Discover how inflation solves key problems in cosmology and why it's considered a cornerstone of modern Big Bang theory.

How does the Casimir Effect manipulate 'nothing' to produce measurable forces?
The Casimir effect, arising from the difference in quantum vacuum fluctuations between two conducting plates, demonstrates that 'empty space' is far from empty. We'll explore the experimental evidence for this effect and its potential applications in nanotechnology. Learn how this phenomenon challenges our understanding of vacuum energy and its implications for the cosmological constant problem.

Can the concept of Zero-Point Energy redefine our understanding of a true vacuum?
Zero-point energy, the lowest possible energy that a quantum mechanical system may have, has profound implications for our understanding of the vacuum. We'll explore the theoretical predictions of vacuum energy density and the stark contrast with observational evidence, known as the vacuum catastrophe. Discover the potential applications and limitations of harnessing zero-point energy.

How Vacuum Decay Would Destroy The Universe?
Finally, we'll delve into the unsettling possibility of vacuum decay, a process that could rewrite the laws of physics as we know them. Learn about false vacuums, quantum tunneling, and how a bubble of true vacuum could expand at the speed of light, obliterating everything in its path. We'll discuss the likelihood of this event occurring and its implications for the long-term fate of the universe.

Content
00:00 Introduction
00:48 Does 'Nothing' Exist, or Is There Only 'Quantum Foam'? Is Nothing Real?
06:06 Does "The Schwinger Effect" Demonstrate "Something from Absolutely Nothing"?
12:44 Can Quantum Fluctuation Potentially Create a Universe from 'Nothing'?
19:24 How Does Hawking Radiation Convert Vacuum Energy into Detectable Matter?
27:50 How Did Inflationary Cosmology Turn 'Nothing' into a Universe Brimming with Galaxies and Stars?
36:40 How Does the Casimir Effect Manipulate 'Nothing' to Produce Measurable Forces?
43:00 Can the Concept of Zero-Point Energy Redefine Our Understanding of a True Vacuum?
46:44 How Vacuum Decay Would Destroy The Universe?

This video tutorial provides a basic introduction into physics. It covers basic concepts commonly taught in physics.

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Join scientists as they grab light from across the universe to prove quantum entanglement is real.

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Einstein called it “spooky action at a distance,” but today quantum entanglement is poised to revolutionize technology from computers to cryptography. Physicists have gradually become convinced that the phenomenon—two subatomic particles that mirror changes in each other instantaneously over any distance—is real. But a few doubts remain. NOVA follows a ground-breaking experiment in the Canary Islands to use quasars at opposite ends of the universe to once and for all settle remaining questions.

(Premiered January 9, 2019)

Chapters:
00:00 Introduction
03:52 Is Quantum Entanglement Real?: Canary Islands Experiment
08:10 The Beginnings of Quantum Mechanics
15:26 Quantum Mechanics Explained by Einstein, Podolsky and Rosen
22:39 Developments from Discovery of Quantum Theory
27:11 The First Quantum Entanglement Experiment
32:04 Quantum Computers Solving Real-World Problems
39:02 Loopholes of Quantum Entanglement
45:20 The Results of the Canary Islands Experiment
47:47 Quantum Entanglement in Modern Physics

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All bodies in this universe is attract each other by gravitational force, atleast we all have studied till date. The universe is like space-time sheet which can be deflated by the weight of body and the small bodies fall into the pit formed by heavy bodies. Free fall of bodies are actually happen due to this phenomenon which proves that gravitational force is not a force. All bodies actually moving in their respective paths and they meet where they cross their path. We only see things in one,two or three dimension with our naked eyes and can't see other remaining dimension. #shorts #science #physics #education #spacetime @CONCEPTUALGURUJI

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Why do we see rainbows in soap bubbles? What makes an oil slick so oddly beautiful? Iridescent colors, which transform depending on the angle you look at them, are all over nature. How does physics make these shifting rainbows? We’re going to find out with the help of the National Museum of Natural History's most spectacular specimens – from bird feathers and beetle wings to fossils and gemstones.

Check out some of my other videos about color in nature:
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In this video, we look at how an electric motor works and the important role of the split-ring commutator.

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The standard model of particle physics is our fundamental description of the stuff in the universe. It doesn’t answer why anything exists, but does describe what exists and how it behaves, and that’s what we’ll be discovering in this video. We will cover the fermions, which contain the quarks and the leptons, as well as the bosons or force carriers. As well as which of the fundamental forces each of these fundamental particles interact with, along with the Higgs field. We’ll also look at the conservation rules of particle physics, symmetries in physics and the various quantum numbers that rule which particle interactions are valid and which are not.

#particlephysics #standardmodel #DomainOfScience

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References
[1] good summary
https://physics.info/standard/
[2] CPT symmetry
en.wikipedia.org/wiki/CP_violation
[3] Arvin Ash video
https://youtu.be/gkHmXhhAF2Y
[4] Conservation rules video
https://www.youtube.com/watch?v=dkFr3BGO8Dg
[5] More conservation rules
https://www.youtube.com/watch?v=qbf7y7Uv6d4
[6] Particle conservation laws
https://bit.ly/3pIb05M
[7] Short explanation of spin
https://bit.ly/2R7UIGV
[8] Short video explaining spin
https://youtu.be/cd2Ua9dKEl8
[9] Pauli exclusion principle
https://bit.ly/3mr4bF5
[10] The failure of supersymmetry
https://bit.ly/3uumFHn
[11] A nice summary of CP-symmetry
https://bit.ly/3t5WmqS

--- Chapters ---
00:00 Intro
00:28 What is particle physics?
01:33 The Fundamental Particles
02:13 Spin
3:52 Conservation Laws
5:01 Fermions and Bosons
7:40 Quarks
11:12 Color Charge
14:13 Leptons
16:39 Neutrinos
19:08 Symmetries in Physics
21:56 Conservation Laws With Forces
23:07 Summary So Far
23:36 Bosons
25:48 Gravity
26:52 Mysteries
28:24 The Future
29:08 Sponsor Message
30:12 End Ramble

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Welcome to Science WARS!
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All the other fields out there are so basic
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Keep your eye on me
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If you want to learn about the world I must say
I am the purest field of study you can take
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No bias, just constant augmentation
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No gadgets, just your logic and your time

And PIE

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Why do people think physics is difficult?? Is it because they think it's boring or is it because they find it complicated? Who is Isaac Newton, why did he find Gravity, how gravity is connected to the magnetic field, which is connected to electricity?? Yes, there are lots of questions. But physics is not just a field of science, everything around you is connected to physics. Velocity, displacement, speed, force, light, reflection, refraction, entropy, torque, all these things you can find in your daily life. There are different fields of physics such as fluid dynamics, thermodynamics, electrostatics. And to make these fields easy, scientists such as Georg Ohm, Han Christian Oersted, Daniel Bernoulli made some laws such as Ohm's law, Bernoulli equation, right- left-hand rule. So here is a video that explains most of physics in 10 minutes.


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Five areas of physics worth remembering: Classical mechanics, energy and thermodynamics, electromagnetism, Relativity, and Quantum Mechanics. Classical mechanics - two main concepts worth knowing. The first is Newton’s second law: F= ma: Force equals mass times acceleration. If you apply a force to a fixed mass, it tells you how much acceleration you will get. And knowing acceleration which is the change in velocity, you can make predictions.

The second equation is the law of universal gravitation. it allows us to determine the motion of heavenly bodies. It says that the gravitational attraction between two bodies is the product of their masses divided by the distance between them squared, times a constant, called Newton’s gravitational constant.

Energy is not a vector like force or momentum, but it is just a number. Work is closely related to energy. It is force times distance traveled. Energy for most objects consists of kinetic energy plus potential energy. KE is the energy of motion, It is KE = ½ M V^2 – the more mass you have and/or the more velocity you have, the more energy you have.

Gravitational potential energy is expressed as PE = m g h – mass times the gravitational acceleration times the height. The total energy of an object is both Kinetic energy plus potential energy. Potential energy can take many forms. Gasoline or petrol has chemical potential energy. Important: Energy is always conserved. It is not created or destroyed. It only changes form.

Thermodynamics is the study of work, heat, and energy on a system. We showed energy is how much work you could do. But another form of energy is thermal energy. If a car is moving and you apply the brakes, the kinetic energy of the car gets converted to thermal energy, created by friction of the car’s brakes. Temperature is the average kinetic energy of atoms in a system. Thermal energy is the total kinetic energy of atoms in a system.

Entropy is a measure of disorder, or more accurately, the information required to describe the micro states of a system. The 2nd law of thermodynamics states that entropy of an isolated system can never decrease. Energy at lower entropy can do more work than energy at high entropy. The one way flow of Entropy seems to be the only reason we have a forward flow of time.

Electromagnetism is the study of the interaction between electrically charged particles. The essentials are in Maxwell’s equations. If you have a static object with a charge, it will affect only other charges. If you have a static magnet, it will affect only other magnets. It will not affect charges. But if you have a moving charge, it will affect a magnet. And if you have a moving magnet, it will affect a charge. The constants mu naught and epsilon naught are the permeability and permittivity of free space. These two constants determine the speed of light because they measure the resistance of space to changing electric and magnetic fields.

Special Relativity: Einstein presumed that the speed is the same in any frame of reference. This was one of the postulates.
The second postulate was principle of relativity - the laws of physics are the same for all observes who are moving at the same velocity relative to each other. Einstein showed that the only way these can be true is if time was not fixed, but was relative.

General relativity: Later Einstein showed using the same assumptions, there would be no way to tell if you were in an accelerating reference frame or standing stationary on earth. A flashlight beam will bend in gravity. But since light always takes the shortest path between any two points, this means that space-time itself is bending.

Quantum mechanics: Three principles are important. First by Max Planck, says that energy is not continuous, but is quantized. The amount of energy equals the frequency of the radiation times Planck's constant. Using this, Einstein later showed that a photon is both a wave and a particle.

The second is the Heisenberg's uncertainty principle: you cannot know both a particle’s exact position and it’s exact momentum at the same time. For a particle with mass, this means if you know exactly where a particle is, you don’t know how fast going. If you know exactly how fast it’s going, you don’t know where it is.
#allphysics
#arvinash
Schrodinger's equation: prior to measurement, quantum systems are in superposed states. This means that their properties can only be expressed as a wave function. A wave function simplified, is a set of probabilities. So in a hydrogen atom, you can’t know where to find the electron in advance. All you can know is the probability of where you might find it, if you measured it. Prior to measurement, all quantum systems are waves of probabilities. This is not a limitation of our measuring devices. It is a limitation of reality.
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