This week, CERN announced a new particle that will help further understanding of the fundamental forces, and a simulation of ancient creatures may give us a clue as to how life grew beyond the microscopic.

The weak force has been causing trouble for a century, ruining everything physicists thought was true. But it might actually be responsible for your very existence.

Protons make up most of the regular matter int he universe, but we're still figuring out a few of their quirks... Or quarks. Join Hank Green and learn why protons are still so mysterious to scientists, and what we've discovered about...

In this video Paul Andersen explains the differences between a system and an object. Depending on the scale it often times easies to view a system as an object if the constituent parts aren't relevant to the question being asked. He...

This video is about how to create muons in a particle accelerator via bombardment of heavy nuclei with protons, which results in creation of charged pions (plus and minus). The pions then decay into muons and mu neutrinos, and...

The universe is a pretty grand place to live, but scientists have one issue with it, it's an anomaly that should be scientifically impossible.

Hank responds to viewer questions, and explains what the Higgs boson particle actually IS.

Hank gives us an inclusive overview of how everything in the universe is thought to have begun, and how cosmologists predict it will all come to an end. Now get happy!

The sun is beginning a new weather cycle, causing debate among scientists about how intense things are going to get, and elsewhere, scientists are looking into just how fluid our early universe was.

This week, CERN announced a new particle that will help further understanding of the fundamental forces, and a simulation of ancient creatures may give us a clue as to how life grew beyond the microscopic.

No one has ever conclusively seen a proton turn into other, lighter particles, but fifty million liters of water in Japan might change that and our ideas about subatomic particles forever.

Hank continues our series on the four fundamental forces of physics by describing the weak interaction, which operates at an infinitesimally small scale to cause particle decay.

In this video Paul Andersen explains how the strong nuclear force holds the nucleus together in spite of repulsive electrostatic charges acting on the nucleons. Mesons exchanged between nucleons keep the nucleus intact and gluons...

The weak force has been causing trouble for a century, ruining everything physicists thought was true. But it might actually be responsible for your very existence.

In this video Paul Andersen explains how at the smallest level all matter is made of fundamental particles; including quarks, electron, photons and neutrinos. He explains how understanding the properties of these particles allows us to...

The mass of the sun was well understood, and translates to about 10^57 atoms. This leads to a lifetime of the sun of about 20,000 years. But we know the sun is at least 4.5 billion years old. So where does the...

What is Mass? And Where Does it come from? It's source is going to blow you away! It's (mostly) NOT from the Higgs Field.



We tend to think of mass as weight? So for example, you might...

Partícula que forma parte del núcleo de los átomos, tiene una masa similar a la de un protón y carece de carga eléctrica. <br/<br/>>

Twig - Química

Partículas elementales que componen los protones y neutrones que, a su vez, forman los núcleos de los átomos. <br/<br/>>

Twig - Física

Particles found in the nuclei of atoms, which have a similar mass to a proton, but no electric charge.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and...

A fundamental particle, and the components from which protons and neutrons in atomic nuclei are made.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and...

Alexa teaches you how to conjugate Croire (to believe) in 5 main French tenses.

Nobel Laureate David Politzer describes Galileo’s vital lesson of obtaining knowledge by working with related similar but knowingly inappropriate models that can point towards a deeper understanding.

Beyond molecules and atoms, how far down can we see below the wavelength of visible light? What is the smallest possible scale in the universe?