In this quantum world, what does it mean to touch something? Do we really hover above the chairs we're sitting in?

The weird rules of quantum mechanics lead to all sorts of bizarre phenomena on tiny scales— particles teleporting through walls or being in multiple places at once or simultaneously existing and not. Shame all this magical behavior...

Many Worlds interpretation of quantum mechanics proposes that every time a quantum event gets decided, the universe splits so that every possible outcome really does occur. But where exactly are those worlds, and can we ever see them?

Although polar bears and grizzly bears aren't all that similar and are definitely separate species, they can interbreed and create fertile offspring in the wild. Hank brings us the story of these misfit bears, which he likes to call...

In this quantum world, what does it mean to touch something? Do we really hover above the chairs we're sitting in?

Why are most manhole covers round? Sure it makes them easy to roll, and slide into place in any alignment. But there's another, more compelling reason, involving a peculiar geometric property of circles and other shapes. Marc Chamberland...

Schizophrenia affects 20 million people worldwide, and we don’t exactly know how it develops, or what causes it yet. However, some research has found that it might be an autoimmune condition.

In this video Paul Andersen explains how vector addition can be used to determine the electric field of a dipole.

Welcome back to Bizarre Beasts: Season Zero, where we are remastering episodes of Bizarre Beasts that were originally created for Vlogbrothers. This episode is the Portuguese Man O’ War, the animal (well, colonial organism) that sails...

Howcast - Learn how to make half-lap joints from Makeville Studio in this Howcast woodworking video.

Howcast - Learn how to do a side plank from certified personal trainer James Rizzo in this home ab workout video from Howcast.

Howcast - Learn how sexual attraction is conveyed through body language in this Howcast video.

Howcast - Learn what phonics is from reading specialist Anne Glass in this Howcast video.

Howcast - Learn how to work with live paint in Adobe Illustrator from expert Will "Focus" Dubois in this Howcast video.

Howcast - Learn how to protect your floors when painting from Brushed Interiors founder David Sartori in this Howcast video.

Making your own beer hat is easier than you think — and wearing one makes it a lot easier to clap for the home team. Follow these steps to sport a handmade beer cap at the next big game.

This virtually no-sew, strapless dress will have you rethinking all those unworn oxfords in your closet.

Pupil outcome: I can select images and arrange a composition for a Surreal dreamscape collage. Key learning points: - By moving the material, rather than the scissors, complex shapes are easier to cut. - Triangular composition can help...

We continue to expand the User-Interface by adding an additional button and text box. Welcome to our MIT App Inventor tutorial series! This comprehensive series teaches you everything you need to know to design, build, and enhance mobile...

Unlike a broken leg, mental health—and the lack thereof—is deeply complex. Mental states exist on a spectrum, often without clear biomarkers. Medical diagnoses frequently intertwine overlapping conditions, subjective assessments, and...

Valence Bond (VB) theory explains how chemical bonds form through the overlap of atomic orbitals, where electron pairs are shared between atoms. The key concepts include: Atomic Orbital Overlap: Bonds form when atomic orbitals from...

The potential energy curve of the H₂ molecule illustrates how the energy of the system changes as the two hydrogen atoms approach or move apart. As the atoms come closer, the attractive forces between the positively charged nuclei and...

Getting funding for public health or global health projects isn't easy. The trick is to be approaching the right funding agencies for the right projects. In this video I provide an overview of public health funding agencies.

A substance produced as the result of a chemical reaction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...