George Washington's second inauguration took place in Philadelphia in March 1793. Six months later, yellow fever had ripped through America's capital city, taking 5,000 lives. How did the Founding Fathers react when the epidemic called...

The Founding Fathers were American patriots who helped create a nation, but there are some things you might not know about them...

These striking red plants are a common Yosemite roadside attraction in the springtime, but most park visitors are confused about what they're seeing. Is it a plant, a mushroom, or maybe a visitor from another planet? Learn about the...

Written by Founding Father James Madison in 1789, The Bill of Rights makes up the first ten amendments to the US Constitution. Many people still consider the Bill of Rights to be the cornerstone of our society, but not everyone agrees.

Before 2015, it was common to hear that Alexander Hamilton was, by far, the most undervalued of all the American Founding Fathers. But with the explosive popularity of the Broadway musical Hamilton, that statement is no longer accurate....

Less than a lifetime ago, humankind just barely left the limits of Earth's atmosphere. Who could have imagined that only 60 years later we would be touching the surface of the Sun, arriving at the most distant object humans...

Housing represents the main asset class held by UK households and we shall try to understand why it is held as such a large share of assets. We shall then outline whether this choice has other knock on effects in the economy such as...

NASA is boosting cyber to space using a technology called Disruption Tolerant Networking. The technology will help overcome several space communications challenges, benefiting missions in Earth orbit and those farther out in the...

Learn Halloween characters vocabulary with this fun Halloween characters Vocabulary Chant for kids! Halloween vocabulary for kids! Don't be scared! It teaches Halloween character names in English. A Halloween characters vocabulary chant...

A fun and catchy Phonics Song for kids! Learn the sounds of the English Alphabet with simple words and music. First repeat the sounds of each letter, and then the words! Great for students, toddlers, children, or babies. It’s EASY to...

Loneliness doesn't always stem from being alone. For architect Grace Kim, loneliness is a function of how socially connected we feel to the people around us -- and it's often the result of the homes we live in. She shares an age-old...

The Harvard Printing Press was the Internet of its day. The first of its kind in the US, it kickstarted the publishing industry and helped everyday Americans to stay informed.

Cicadas have developed an amazing strategy for growth, survival, reproduction, and overcoming predation by...doing nothing. They do nothing for years (except sip at the juice excreted from root structures) before emerging in huge,...

Jessi takes Cayenne and Chili Pepper the Patagonian Cavies for a walk outside on 20' leashes. It's no easy feat to keep them calm and focused so they don't get tangled but also ensure a good time is had by all. Watch how they make it work!

In which John Green teaches you about the American Revolution. And the Revolutionary War. I know we've labored the point here, but they weren't the same thing. In any case, John will teach you about the major battles of the war, and...

In which John Green teaches you where American politicians come from. In the beginning, soon after the US constitution was adopted, politics were pretty non-existent. George Washington was elected president with no opposition, everything...

In which John Green teaches you about founding father and third president of the United States, Thomas Jefferson. Jefferson is a somewhat controversial figure in American history, largely because he, like pretty much all humans, was a...

In which John Green teaches you about the United States Constitution. During and after the American Revolutionary War, the government of the new country operated under the Articles of Confederation. While these Articles got the young...

It’s a What's Your Name? song for kids! Sing along to the What's Your Name? song and learn or teach how to ask "What's Your Name?" and how to answer "My name's (Miss Pink)"! A great song to learn how to ask "What's your name?" in...

Warrior 3, Crane, and One-Legged Wheel are all balancing poses that bring strength and coordination.

The motto of the United States is: "In God We Trust." But the motto is a relatively recent invention, dating back to the 1950s. Why did the U.S. institute this motto, and what does it tell us about American identity and religion?

This Paragraph Argument Short Answer question also works as a part of the AP Physics C: Mechanics curriculum.

This video is answering the question of what is a water footprint.

This problem is about manipulating dimensions to deterring the average speed of a moving beam of protons