Menu

Blog

Archive for the ‘quantum physics’ category: Page 3

Jul 3, 2022

Heisenberg and his views on quantum mechanics

Posted by in category: quantum physics

Werner Heisenberg was a German theoretical physicist who was awarded the Nobel Prize in 1932 for the creation of quantum mechanics. He was only 25 years old when he discovered the uncertainty principle. Although at the time Heisenberg did not understand his own work, so he handed it to his immediate supervisor, Max Born, and went on vacation.

Jul 3, 2022

Demis Hassabis: DeepMind — AI, Superintelligence & the Future of Humanity

Posted by in categories: nuclear energy, quantum physics, robotics/AI

Demis Hassabis is the CEO and co-founder of DeepMind. Please support this podcast by checking out our sponsors:
- Mailgun: https://lexfridman.com/mailgun.
- InsideTracker: https://insidetracker.com/lex to get 20% off.
- Onnit: https://lexfridman.com/onnit to get up to 10% off.
- Indeed: https://indeed.com/lex to get $75 credit.
- Magic Spoon: https://magicspoon.com/lex and use code LEX to get $5 off.

EPISODE LINKS:
Demis’s Twitter: https://twitter.com/demishassabis.
DeepMind’s Twitter: https://twitter.com/DeepMind.
DeepMind’s Instagram: https://instagram.com/deepmind.
DeepMind’s Website: https://deepmind.com.
Plasma control paper: https://nature.com/articles/s41586-021-04301-9
Quantum simulation paper: https://science.org/doi/10.1126/science.abj6511
The Emperor’s New Mind (book): https://amzn.to/3bx03lo.
Life Ascending (book): https://amzn.to/3AhUP7z.

Continue reading “Demis Hassabis: DeepMind — AI, Superintelligence & the Future of Humanity” »

Jul 2, 2022

Mind-Bending Physics Reveals Electrons Travel in “Lanes” While Moving Along Quantum Wires

Posted by in categories: particle physics, quantum physics

A new study from the University of Cambridge reveals that electrons can simultaneously possess different energy levels.


Electrons, one of the most fundamental components of our universe, still hold a few secrets that puzzle modern scientists. Since the 1920s, physicists have worked to try and unravel the workings of these negatively charged particles, and how they behave in different situations. Now, research conducted at the University of Cambridge has shed new light on a pair of key factors–the spins and charges of electrons–revealing even more about their unique behavior.

Background: Spin and Charge

Continue reading “Mind-Bending Physics Reveals Electrons Travel in ‘Lanes’ While Moving Along Quantum Wires” »

Jul 1, 2022

Objective Reality May Not Exist at All, Quantum Physicists Say

Posted by in categories: neuroscience, particle physics, quantum physics

If objective reality doesn’t exist, where does that leave us? Does reality emerge into physicality directly from nothing, or could it be that conceptual reality is just as real as the physical universe? If that is the case, then physical matter is just a product of conception, and consciousness is its backdrop.


Does reality exist, or does it take shape when an observer measures it? Akin to the age-old conundrum of whether a tree makes a sound if it falls in a forest with no one around to hear it, the above question remains one of the most tantalizing in the field of quantum mechanics, the branch of science dealing with the behavior of subatomic particles on the microscopic level.

In a field where intriguing, almost mysterious phenomena like “quantum superposition” prevail—a situation where one particle can be in two or even “all” possible places at the same time—some experts say reality exists outside of your own awareness, and there’s nothing you can do to change it. Others insist “quantum reality” might be some form of Play-Doh you mold into different shapes with your own actions. Now, scientists from the Federal University of ABC (UFABC) in the São Paulo metropolitan area in Brazil are adding fuel to the suggestion that reality might be “in the eye of the observer.”

Continue reading “Objective Reality May Not Exist at All, Quantum Physicists Say” »

Jul 1, 2022

Is quantum physics the only way to know the universe?

Posted by in category: quantum physics

We need to look at this question in a different and expanded way.

Jul 1, 2022

What is Quantum Physics, and how does it work?

Posted by in category: quantum physics

What is Quantum Physics 0, and how does it work? Is quantum theory capable of explaining the universe’s mysteries?

What is Quantum Physics, and how does it work? Is quantum theory capable of explaining the universe’s mysteries? For centuries and decades, many scientists worldwide have been attempting to decipher the mysteries of the cosmos. Scientists have only cracked a handful of the universe’s inexhaustible secrets despite this. But, more importantly, are we uncovering the secrets of the cosmos correctly? Are we broadening our quest in the opposite direction of what we have mistaken for the limitless secrets of the universe? We don’t even know where to start looking for the answers to such questions.

Many outstanding scientists across the globe are using quantum theory to try to answer the universe’s unresolved riddles. And it has been somewhat successful. Quantum physics is responsible for numerous modern technologies that have revolutionized the planet. And those excellent scientists deserve to be praised. Learn what quantum physics is all about.

Jul 1, 2022

Michelle Simmons: quantum machines at the atomic limit | The Royal Society

Posted by in categories: biological, nanotechnology, particle physics, quantum physics

Join Professor Michelle Simmons to find out how scientists are delivering Richard Feynman’s dream of designing materials at the atomic limit for quantum machines. 🔔Subscribe to our channel for exciting science videos and live events, many hosted by Brian Cox, our Professor for Public Engagement: https://bit.ly/3fQIFXB

#Physics #Quantum #RichardFeynman.

Continue reading “Michelle Simmons: quantum machines at the atomic limit | The Royal Society” »

Jul 1, 2022

The struggle to find the origins of time

Posted by in categories: cosmology, mathematics, quantum physics

What is time? Why is it so different from space? And where did it come from? Scientists are still stumped by these questions — but working harder than ever to answer them.


St. Augustine said of time, “If no one asks me, I know what it is. If I wish to explain to him who asks, I don’t know.” Time is an elusive concept: We all experience it, and yet, the challenge of defining it has tested philosophers and scientists for millennia.

It wasn’t until Albert Einstein that we developed a more sophisticated mathematical understanding of time and space that allowed physicists to probe deeper into the connections between them. In their endeavors, physicists also discovered that seeking the origin of time forces us to confront the origins of the universe itself.

Continue reading “The struggle to find the origins of time” »

Jul 1, 2022

The Size of an Atom: How Scientists First Guessed It’s About Quantum Physics

Posted by in categories: particle physics, quantum physics

Atoms are all about a tenth of a billionth of a meter wide (give or take a factor of 2). What determines an atom’s size? This was on the minds of scientists at the turn of the 20th century. The particle called the “electron” had been discovered, but the rest of an atom was a mystery. Today we’ll look at how scientists realized that quantum physics, an idea which was still very new, plays a central role. (They did this using one of their favorite strategies: “dimensional analysis”, which I described in a recent post.)

Since atoms are electrically neutral, the small and negatively charged electrons in an atom had to be accompanied by something with the same amount of positive charge — what we now call “the nucleus”. Among many imagined visions for what atoms might be like was the 1904 model of J.J. Thompson, in which he imagined the electrons are embedded within a positively-charged sphere the size of the whole atom.

But Thompson’s former student Ernest Rutherford gradually disproved this model in 1909–1911, through experiments that showed the nucleus is tens of thousands of times smaller (in radius) than an atom, despite having most of the atom’s mass.

Continue reading “The Size of an Atom: How Scientists First Guessed It’s About Quantum Physics” »

Jun 30, 2022

5 REAL Possibilities for Interstellar Travel

Posted by in categories: quantum physics, space travel

Tweet at us! @pbsspacetime.
Facebook: facebook.com/pbsspacetime.
Email us! pbsspacetime [at] gmail [dot] com.
Comment on Reddit: http://www.reddit.com/r/pbsspacetime.
Support us on Patreon! http://www.patreon.com/pbsspacetime.

Help translate our videos! https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g.

Continue reading “5 REAL Possibilities for Interstellar Travel” »

Page 3 of 46012345678Last