In this Linux tip, learn how to use the unset command. It’s a command that removes an environment variable from your current login session.

Learn how to identify the main parts of the brain with labeling worksheets and quizzes.

This video will teach us to deploy and configure Pi-Hole as a DNS resolver. We will discover how Pi-Hole can block ads at the DNS level, providing ad-blocking capabilities for our entire network. We will explore the installation...

For the next half of this series, we will be discussing Human Geography — so we’ll still be looking at the Earth, but specifically, how human activity affects and is influenced by the Earth. Naturally, we thought the best place to start...

If you looked at a male and female brain side by side, would you be able to see any differences?

There is an epidemic of HIV, and with it an epidemic of bad laws -- laws that effectively criminalize being HIV positive. At the TEDxSummit in Doha, TED Fellow Shereen El-Feki gives a forceful argument that these laws, based in stigma,...

Diamonds, rubies, emeralds, and sapphires are most of the classic gemstones adorning royal jewels. But they used to be accompanied by a stone that nowadays is most often found in museum gift shops: Amethyst. Here's the story of...

In this video Paul Andersen explains the structures and functions of seventeen major parts of the brain. He begins with a quick discussion of brain evolution and ends with a review of the major parts presented inside the brainstem,...

What are the major parts of the brain? In this video, that’s exactly what you’re going to learn. We’ll talk about the anatomy as well as the function.

Hola. In this video lesson, we're talking about the "personal a." Someone requested this video many moons ago and I thought it might be an interesting thing to explain to those of you learning Spanish.

Die buddhistische Schulbildung ist eine Bewegung, die vor langer Zeit in Tempelschulen in ganz Süd- und Ostasien begann und sich erst vor kurzem zu offizielleren, modern organisierten Einrichtungen entwickelt hat.
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Lyft, an American ride-hailing service, announced on Monday that General Motors has invested $500 million in the company, and the companies together plan to develop a network of autonomous vehicles. From the proposed plan, self-driving...

Learn to use a vibration motor with an Arduino in this tutorial.

In this video lesson, students learn how to divide exponential expressions by observing and generalizing a pattern. The teacher explains the concept of exponents and reviews the rule that states any number divided by itself is one....

How does an African crested porcupine share with a Patagonian cavy? We made a new door within a door so the two can share the dirt floored romping room.

👉Learn how to factor quadratics. A quadratic is an algebraic expression having two as the highest power of its variable(s). To factor an algebraic expression means to break it up into expressions that can be multiplied together to get...

Fra Filippo Lippi, Madonna and Child, c. 1440, tempera on panel, 79 x 51.1 cm / 31-1/8 x 20-1/8 inches (National Gallery of Art, Washington) Speakers: Dr. Beth Harris and Dr. Steven Zucker . Created by Beth Harris and Steven Zucker.

Samuel Pepys explains how high winds drive the fire into the city

Poet C.K. Williams reads his work at TED2001. As he colors scenes of childhood resentments, college loves, odd neighbors and the literal death of youth, he reminds us of the unique challenges of living.

In this video, you will learn how to use the Scenario Manager.

How do we hear? How does sound get transferred from the ear all the way to the brain? In this video, I go into all the juicy details. Listen up and have fun.

Your brain is super fragile. So how come it doesn't get totally wrecked by infections or bacteria? Well, you've got this nifty protection called the blood-brain barrier! To help guide us through your brain's awesome defense, we brought...

Do we only use 10% of our brains? That seems like a very low number. What if we could tap into that extra potential? Humans are obsessed with augmenting and improving ourselves. Just look at Iron Man, Lucy, and Limitless. In this...

👉 Learn how to simplify expressions using the product rule and the negative exponent rule of exponents. The product rule of exponents states that the product of powers with a common base is equivalent to a power with the common base and...