In the Copenhagen interpretation, which is what is typically taught to undergraduate students, particles are in superposition. What is superposition? In quantum mechanics, there is no equation that states...

Is a theory of everything really possible? What makes us think it even exists? If we look at historical precedent, we can see that we have united seemingly completely unrelated forces and particles to a...

How does the indeterminate world of quantum mechanics, where the future isn’t fixed, become the classical predictable real world we experience? Quantum researchers argue about it even today. It's really all...

Could the universe be in a metastable, or false vacuum state? Could there be a looming vacuum catastrophe waiting to happen? Is the universe doomed?



This is related to the Higgs boson and the heaviest...

In quantum mechanics, it’s just as natural to go forward in time as going backwards. And if you look at a typical Feynman diagram, you can turn the diagram either way. Where does this transition from time symmetry...

Why do certain elements have similar properties? Because of the way electrons are arranged around the nucleus of atoms. But why are electrons arranged specifically in certain orbitals and shells? The structure of...

The simplest definition of free will is the ability to have made a different choice. Our more precise definition: it is the ability of conscious beings to make choices that are not solely determined by prior physical...

Why to neutrons exist? You may say, this is a silly question. But the problem is that we know that free neutrons are unstable. This means that if you isolate a neutron by itself, after about 15 minutes, it will...

The many worlds interpretation of quantum mechanics was put forth by graduate student Hugh Everett in 1957. It was considered preposterous at the time, but is now going mainstream. It requires us to...

We have 3D + 1D of time. Why aren’t there 4 dimensions or 2 dimensions? Can life exist in the 4th dimension? Is there something special about three dimensions that makes life possible? This is the question that But...

Hawking radiation,Black-Hole Evaporation and black hole explosions! Stephen Hawking theorized that a black hole may not be so black. He showed that when you apply the laws of quantum mechanics to classical physics,...

How the Planck scale is derived from the most important fundamental constants in physics. This is where our physics ends. If you wanted to simulate the universe in a computer, you would need to enter...

When the nucleus was discovered by Rutherford, it became clear the classical world was not reality, because according to classical electromagnetism, the electron should collapse to the proton. This problem was...

Does a final theory exist that can end our reductionist probing into ever shorter distances? Or is there no end to reductionism? There should be an end point because as the object of our measurement gets small...

Summary:

The big bang model has some problems - homogeneity, flatness, and lack of magnetic monopo
les.
Cosmic Inflation occurred when the entire universe shortly after its beginning, expanded exponentially...

Quantum Immortality - is it real? Quantum mechanics shows that all particles are not particles at all but really waves of probabilities. There are two common interpretations of how these waves become distinct- one...

A quantum wormhole was created by a team of physicists led by Maria Spiropulu of CalTech. But this was not a wormhole in spacetime, but a quantum holographic wormhole created inside a quantum computer.



The...

Is time an illusion? If not, what is time? Why does time flow forward? You are watching this video. Your brain cells are firing in anticipation. A story is unfolding. Time is moving forward. Or...

How Does our Olfactory system work? How do we Smell? It turns out that quantum mechanics plays a big role. What you may not realize is that inside your nose rests a very sensitive quantum device that uses complex...

Holographic Universe? Are we living on a hologram? Or inside a black hole? Our perception is that we live in a three dimensional world. What if our three dimensions, can be equally represented on a two...

Physicists know how to use the equations of quantum mechanics to predict things, but don't really understand what is fundamentally going on.



The primary challenge is that according to the...

Summary:

In this video I explain what supersymmetry is, why physicists think it should exist, why we haven't discovered it, and why it is necess

ary.

There's a theoretical idea that could get...

SUMMARY

In April 2022, a team at Fermilab announced that the W-boson was measured to a new level of 7 sigma precision- 80.4335 giga electron volts (GeV) plus or minus 0.0094 GeV. However, this was not...

SUMMARY:

Why Everything in the universe is a spring (kind of). Why everything is a spring. Classical springs like you might have in your mattress have a harmonic oscillation. And this behavior has a quantum...