Everyone knows that 3-, 4- and 5-year-olds ask a lot of questions. But that unrestrained curiosity can unsettle preschool teachers who feel they lack sufficient understanding of science, technology, engineering and math, often...

In 2013, billionaire investor, businessman and philanthropist David Rubenstein set out an ambitious plan to moderate conversations with prominent historians before an audience of bipartisan lawmakers. The goal: help members of Congress...

Tech leader and philanthropist Jean Case has written a book describing what she sees as the five key principles needed for achieving transformative success. The book, “Be Fearless,” leverages years of research conducted by the Case...

How do the structures of organisms enable life's functions? Benchmarks for grades 2, 5, 8 and 12 are included.

Paul Andersen explains how scientists modify theories by constructing explanations. He also discusses the cycle of design used by engineers to solve problems. He starts by defining a theory as a well-established explanation of a...

Our universe started with the Big Bang, but how will it end? Explore cosmologists’ three possible scenarios: the Big Crunch, the Big Freeze and the Big Rip. -- We know about our universe’s past: the Big Bang theory predicts that all...

This week we’re exploring aerospace engineering and its two main fields: aeronautical engineering and astronautical engineering. We’ll explore life & buoyancy, propulsion systems, and the challenges of managing the human body in space.

In this episode, we looked at food engineering. We explored how food’s capacity to spoil makes it a unique challenge from an engineering viewpoint. We saw how many branches of engineering come into play to process ingredients, ensure...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on causal relationships. TERMS: Cause - a thing that gives rise to an event Effect - an event Relationship - interconnection between parts of a system This...

Today we’ll cover the fourth and final of our core disciplines of engineering: chemical engineering. We’ll talk about its history and evolution going from soda ash competitions to oil refineries and renewable energies. We’ll also discuss...

Today we’re talking about mass transfer. It doesn’t just apply to objects and fluids as a whole, but also to the individual molecules and components that make them up. We’ll see that transfers of mass need their own driving force,...

An essential part of engineering is engineering design. Today we’ll see how design synthesis helps you put together the components of a process and decide what techniques are needed to solve your problem. We’ll explain the need test...

Hank brings us breaking news from a team of geneticists working on figuring out what all that "junk DNA" in the human genome really is - turns out it's not junk after all.

At the turn of the 20th century, scientists thought that insects were nothing more than tiny reflex machines. But Charles Henry Turner, who was possibly America’s first Black entomologist, ran some groundbreaking animal behavior studies...

If you were to take a coffee cup, and break it in half, then in half again, and keep carrying on, where would you end up? Could you keep on going forever? Or would you eventually find a set of indivisible building blocks out of which...

One could say that snowflakes are simply frozen water — but if you compare a snowflake to an ice cube, you’ll notice a big difference. Why are all snowflakes six-sided? Why are none of them exactly the same? And how do we ski on them?...

Do you often lose things like your keys? Psychology can explain not only why it happens, but also some ways to combat that.

Today we continue our tour through the major fields of engineering with a look at mechanical engineering, beginning with the steam engine. We’ll discuss aircraft, the development of aerospace engineering, and take a look into the future...

Published scientific studies can motivate research, inspire products, and inform policy. However, recent studies that examined dozens of published pharmaceutical papers managed to replicate the results of less than 25% of them - and...

How scientifically accurate is your favorite sci-fi space battle?

Let's take a moment to remember the selfless sacrifices made by some amazing robotic explorers.

Dirt biking is more than just a pastime -- it's an opportunity to disrupt the cycle of poverty and provide enriching STEM education, says TED Fellow Brittany Young. In this perspective-shifting talk, she shares how her team is working...

Jedidah Isler dreamt of becoming an astrophysicist since she was a young girl, but the odds were against her: At that time, only 18 black women in the united States had ever earned a PhD in a physics-related discipline. In this personal...

Pourquoi éduquer la jeunesse aux STEM ? L'accès à l'électricité devrait être un droit humain universel. Sandrine Ngalula Mubega, ingénieur électricien congolais, prône de l'équité technologique à travers le monde et propose que davantage...