You've probably heard the rule that you cannot travel faster than the speed of light (in a vacuum). And this is true.

You may also have heard that you cannot travel precisely AT the speed of light. But this is false...because you...

Ending a marriage doesn’t have to mean ending a family, says communication expert Allison O'Brien, who navigated her own divorce without lawyers or mediators. She introduces a framework for ensuring a divorce remains peaceful, supports...

Many of us have experienced feeling stuck. People often report feeling highly motivated at the start and end of a project, but the middle can feel untethered. It can happen when tackling something as simple as a term paper or as...

Allyson Felix, retired track start, is campaigning for a seat on the International Olympic Committee's Athletes' Commission. She hopes to amplify athletes' voices and advocate for meaningful change, such as enhancing family support and...

Relativity Isn't Relative

This video is chapter 6 in my series on special relativity, and it covers the topic of relativistic addition of velocity: aka, how things that are moving relative to one inertial reference frame, which is moving relative to another...

Immovable Object vs. Unstoppable Force - Which Wins

This video is about the famous 'Twins paradox' of special relativity, how time can appear to be faster for two different observers at the same time, and which twin really is older (or younger) - the one who stays on earth or the one who...

There's a right way and wrong way to do empathy, says author and scholar Chezare A. Warren. So how do we get it right? He unpacks the source of false empathy and explains the key shift in perspective we need to build healthy...

The moment you started observing reality, you hopelessly polluted any conclusions you might make about it. The anthropic principle guarantees that you are NOT seeing the universe in most typical state. But used correctly, this highly...

This video is about Bell's Spaceship Paradox of Special Relativity, wherein a pair of rockets (or spacecraft) connected by a weak thread accelerate with uniform acceleration, maintaining the same separation, and the question is: does the...

Because Tara Westover had never been allowed to go to school, the only history she had learned was the history her father taught her. "His perspective was my perspective," she says, and his fears became her fears. But when she discovered...

Sally Rooney, author of our September pick for the NewsHour-New York Times book club, Now Read This, joins Jeffrey Brown to answer reader questions on “Conversations with Friends”.

Brendan Slocumb spent most of his career as a performer and teacher, but this year released his first book, a mystery called "The Violin Conspiracy." The novel is a reflection of Slocumb's experience in the classical music world, where...

John Green is teaching history again. This time, we're looking at the history of Europe in 50 episodes. We'll start at the tail end of the so called Middle Ages, and look at how Europe's place in the world has developed and changed in...

Animals are communicating -- but what are they saying? And can we talk back? Marine biologist David Gruber introduces Project CETI: a team of scientists, linguists and AI specialists hoping to decode sperm whale language. Using...

Welcome to the very first episode of SciShow Psych Talk Show! Hank talks with Kati Morton about mental health: from how you find a therapist to toxic relationships.

The SETI Institute's Jill Tarter makes her TED Prize wish: to accelerate our search for cosmic company. Using a growing array of radio telescopes, she and her team listen for patterns that may be a sign of intelligence elsewhere in the...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on scale and perspective.


TERMS
Phenomena - observable events in the natural world (require exp
lanations)
Time - an irreversible s
eries of...

This video is about the famous 'Twins paradox' of special relativity, how time can appear to be faster for two different observers at the same time, and which twin really is older (or younger) - the one who stays on earth or the one who...

Feeling disconnected from creating art within classical conventions, artist Georgia O'Keeffe began experimenting with abstract drawings that defied easy classification. Using the shapes and rhythms of nature to capture her internal...

How couting in binary can solve the famous tower's of hanoi problem.

How couting in binary can solve the famous tower's of hanoi problem.

Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time,...