Earth’s magnetic field protects us from deadly space radiation. What if it were drastically weakened, as a precursor to flipping upside down? I mean, it has before … many, many times..

Spaceship Earth has a literal deflector...

Squeaks is back from visiting Sam the Bat’s cave and is excited to learn all about how different caves form and why they look the ways they do!

In this video Paul Andersen shows conceptual thinking in a mini-lesson on inputs, processes and outputs in a system.

T
ERMS:
System models - a representation o
f a system
Interactions - reciprocal (two-way) acti
on...

People have become increasingly worried that the threats we face today, like climate change and rising inequality, can't be solved by a capitalist economic system. So, is that true? And if it is, can we fix capitalism or do we need to...

In 1999, scientists discovered something that took over 20 years to solve. Why do solar flares move like a lava lamp?

In this video Paul Andersen shows conceptual thinking in a mini-lesson on cycles and flows in matter and energy. Two examples are included in the video and two additional examples are included in the linked thinking slides. ...

At TED2009, Al Gore presents updated slides from around the globe to make the case that worrying climate trends are even worse than scientists predicted, and to make clear his stance on "clean coal."

NASA spend lots of money and time to create a pen that could use in space, on the other hand, their rival Soviet just used a pencil' You've probably heard this story, but is it true? Here is the truth about the space pen!

Today we're going to talk about how and why floods happen both in spite of, and because of, us. Specifically, we'll take a closer look at the island of Java, and its largest city, Jakarta, and explain the factors that lead to serious...

We've all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Emma Bryce traces the life cycles of three different plastic bottles, shedding light on the...

Today we're going to talk about rivers and how these dynamic, delicate, yet powerful systems are able to constantly change the landscape. We'll focus on the Zambezi River in Southeast Africa following its main features from the...

In this episode of Crash Course Physics, Shini talks to us about how power gets to our homes. It's kind of amazing when you think about it and much more complicated than it may seem!

Humans have always peed and pooped, but where it goes after we’ve done our business has changed a lot. In fact: The water you just drank may well have been a part of someone’s urine just weeks ago! SciShow explains!

Waterfalls are pretty amazing, but have you ever wondered how they form? Jessi's got the answer! Join her to learn all about how rivers carve waterfalls and then take a look at Angel Falls, the tallest waterfall in the world!

Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function.

Mr. Andersen describes the relationship between voltage, current and resistance in an electric circuit. Ohm's Law is introduced through a circuit simulation.

Let's understand the mechanism of how a chatbot works. It needs a predefined goal or objective to function, draft potential solution flows, validate examples, define the solution flows, and launch the chatbot.

Learn how to integrate Series and Parallel components together to create a complete circuit. We then develop the circuit on a breadboard.

Learn how to apply the basic concepts of Series and Parallel circuit analysis to derive the total resistance for any circuit.

Learn how to simply analyze Series and Parallel Circuits.

Learn how to analyze circuits using KVL and KCL.

Node Voltage Analysis is a technique used in circuit analysis. Learn how to easily apply it to solve this question.

Learn how to apply the Maximum Power Transfer Theorem to solve this! Do you want to learn Embedded Systems the Right Way?

In this video, we look at different possible Load Values and understand its impact on the circuit.