PBS
Hacking the Nature of Reality
In standard use, the S-matrix can be calculated if you understand the forces in the interaction region - for example, in the nucleus of an atom. But what if you don’t know those internal interaction forces? Heisenberg sought a way to...
PBS
Why the Muon g-2 Results Are So Exciting!
When a theory makes a prediction that disagrees with an experimental test, sometimes it means we should throw the theory away. But what if that theory has otherwise produced the most successful predictions in all of physics? Then, that...
PBS
Are Virtual Particles A New Layer of Reality?
Sometimes our mathematical hacks point to strange new aspects of reality. For example Max Planck used a quantization trick to figure out the spectrum of light emitted by hot objects. The quantization part of his math trick was meant to...
PBS
The Oddest Couple in the Fossil Record
To figure out how Thrinaxodon and Broomistega became entombed together, scientists looked at the burrow itself, along with their fossilized bones. And it looks like their luck ran out, when a behavior that usually would’ve helped them...
Crash Course
Psychology of Computing: Crash Course Computer Science
We’ve spent most of this series talking about computers. Which makes sense - this is Crash Course COMPUTER SCIENCE after all. But at their core computers are tools employed by humans and humans are pretty complicated. So today, we’re...
Bozeman Science
Object Interactions
In this video Paul Andersen explains how object interactions can add or remove mass or energy from a system.
SciShow
What If Dark Energy Doesn’t Exist?
Dark Energy is what we call the mysterious force that seems to be pushing the universe apart. By some calculations, it makes up 70% of everything in nature. Or...maybe it doesn’t exist at all! Plus, Juno’s observations give us new...
TED-Ed
TED-ED: The microbial jungles all over the place (and you) - Scott Chimileski and Roberto Kolter
As we walk through our daily environments, we're surrounded by exotic creatures that are too small to see with the naked eye. We usually imagine these microscopic organisms, or microbes, as asocial cells that float around by themselves....
PBS
Solving the Impossible in Quantum Field Theory
The equations of quantum field theory allow us to calculate the behaviour of subatomic particles by expressing them as vibrations in quantum fields. But even the most elegant and complete formulations of quantum physics - like the Dirac...
Curated Video
Are Virtual Particles A New Layer of Reality?
Let me tell you a story about virtual particles. It may or may not be true.
PBS
The Secrets of Feynman Diagrams
Unlock the secrets of Feynman Diagrams. Part 5 in our Quantum Field Theory series.
Bozeman Science
Thinking in Systems - Level 2 - Components and Interactions
In this video Paul Andersen shows conceptual thinking in a mini-lesson on components and interactions within systems. TERMS: System - a set of components (e.g. things) working together Components - a part of a larger whole Interactions -...
Amoeba Sisters
Alleles and Genes
Join the Amoeba Sisters as they discuss the terms "gene" and "allele" in context of a gene involved in PTC (phenylthiocarbamide) taste sensitivity. Note: as mentioned throughout video, the ability to taste PTC may be more complex than a...
Amoeba Sisters
Protein Structure and Folding
After a polypeptide is produced in protein synthesis, it's not necessarily a functional protein yet! Explore protein folding that occurs within levels of protein structure with the Amoeba Sisters! Primary, secondary, tertiary, and...
PBS
When Time Breaks Down
We learned how motion gives matter its mass, but how does motion affect time? Let's dive deeper into the true nature of matter and mass by exploring Einstein's photon clock thought experiment, and the phenomenon that is time dilation.
TED-Ed
TED-Ed: The Higgs Field, explained - Don Lincoln
One of the most significant scientific discoveries of the early 21st century is surely the Higgs boson, but the boson and the Higgs Field that allows for that magic particle are extremely difficult to grasp. Don Lincoln outlines an...
SciShow
The Ghostly Particles That May Have Unbalanced the Universe
Almost all matter in the universe should have been annihilated shortly after the Big Bang, but looking around, we see galaxies, stars, planets, and, you know... us. So obviously that didn't happen, and the why of it may have something to...
TED Talks
TED: Why you feel anxious socializing (and what to do about it) | Fallon Goodman
In crowds, at parties, meetings, get-togethers with friends, everyday interactions: social anxiety can show up as an unwelcome guest at any time. But why? Psychologist Fallon Goodman digs into the source of social anxiety, setting the...
SciShow
How a Frozen Earth Gave the Moon Its Shape
It might look like a perfect circle, but the Moon is actually wider than it is tall. Now, new calculations indicate that the Moon’s shape is a remnant of a time when Earth might’ve been covered in a single, global ice sheet.
TED Talks
TED: How play helps a kid's brain grow | Jesse Ilhardt
A little bit of playtime can have big benefits for a child's developing brain, like a superfood -- but adult participation is a crucial ingredient for best results. Early-education leader Jesse Ilhardt makes the case for you to put down...
TED-Ed
TED-Ed: Why don't oil and water mix? - John Pollard
Salt dissolves in water; oil does not. But why? You can think of that glass of water as a big, bumpin' dance party where the water molecules are always switching dance partners -- and they'd much rather dance with a salt ion. John...
PBS
Quantum Theory's Most Incredible Prediction
Quantum field theory is notoriously complicated, built from mind-bendingly abstract mathematics. But are the underlying rules of reality really so far from human intuition? Or are physicists just showing off? For better or worse, the...
Bozeman Science
PS2B - Types of Interactions
Paul Andersen explains how objects interact when touching and at a distance. Electromagnetic forces are very important when objects are touching and fields explain both electromagnetic and gravitational forces. The strong and weak...
SciShow
What Happens If You Fuse All Your Chromosomes? | SciShow News
Two separate groups of biologists reported fusing entire sets of Saccharomyces cerevisiae chromosomes together, and surprisingly, the actual number of chromosomes might not be as important as we thought.