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Quantum Mechanics
11mins
"We are all in orbit around the center of the Milky Way galaxy. How big is this collection of stars? Somewhere between 200 and 400 billion suns in the Milky Way galaxy, about 100,000 light years across."
The laws of physics obey certain symmetries and defy others. It's theoretically tempting to add new ones, but reality doesn't agree.
Photons come in every wavelength you can imagine. But one particular quantum transition makes light at precisely 21 cm, and it's magical.
22mins
"Quantum mechanics and quantum entanglement are becoming very real. We're beginning to be able to access this tremendously complicated configuration space to do useful things."
The Kalam cosmological argument asserts that everything that exists must have a cause, and the "first" cause must be God. Is that valid?
The Multiverse isn't just a staple of science fiction; there's real-life science behind it, too. Here are 10 facts to expand your mind.
One of the most promising dark matter candidates is light particles, like axions. With JWST, we can rule out many of those options already.
When we divide matter into its fundamental, indivisible components, are those particles truly point-like, or is there a finite minimum size?
Despite no experimental evidence showing that gravitons exist, they remain a respectable concept in the world of professional physicists.
In the year 2000, physicists created a list of the ten most important unsolved problems in their field. 25 years later, here's where we are.
Matt Strassler's journey into fundamental physics culminates in a brilliant explanation of the Higgs field. Enjoy this exclusive interview.
By improving quantum error correction, quantum computations are now faster than ever. But parallel universes? That's utter nonsense here.
If atoms are mostly empty space, then why can't two objects made of atoms simply pass through each other? Quantum physics explains why.
Our classical intuition is no good in a quantum Universe. To make sense of it, we need to learn, and apply, an entirely novel set of rules.
LHC scientists just showed that spooky quantum entanglement applies to the highest-energy, shortest-lived particles of all: top quarks.
Within our observable Universe, there's only one Earth and one "you." But in a vast multiverse, so much more becomes possible.
By focusing on the role of human experience, we may uncover new insights on the fundamental structure of reality.
Researchers at the Brookhaven National Laboratory recently created the heaviest exotic antimatter hypernucleus ever observed.
No matter how good our measurement devices get, certain quantum properties always possess an inherent uncertainty. Can we figure out why?
Quarks and leptons are the smallest known subatomic particles. Does the Standard Model allow for an even smaller layer of matter to exist?
A recent paper in the journal Physical Review Letters claims to prove that a "kugelblitz" is not possible.
A longstanding mismatch between theory and experiment motivated an exquisite muon measurement. At last, a theoretical solution has arrived.
The passage of time is something we all experience, as it takes us from one moment to the next. But could it all just be an illusion?
The properties of a ghostly particle called a neutrino are coming into focus.
The evolution of quantum technology is far from over.
Scientists are searching for dark matter particles that are trillions or even quadrillion times lighter than the more traditional searches.
Holograms preserve all of an object's 3D information, but on a 2D surface. Could the holographic Universe idea lead us to higher dimensions?
Discover how Quantum Bayesianism challenges traditional quantum mechanics by focusing on the role of the observer in creating quantum reality.
Practically all of the matter we see and interact with is made of atoms, which are mostly empty space. Then why is reality so... solid?
If the electromagnetic and weak forces unify to make the electroweak force, maybe, at higher energies, something even grander happens?