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Mr. Rogers went to put on his shoes and found they didn't fit.

Fred Rogers was truly one of humanity's greats, in every sense that counts most. He wasn't a titan of industry or a builder of empires. He wasn't a man of great means or a wielder of political power. He was humble, gentle, and kind. He was a teacher, a learner, and a leader in his own way.

For generations of children, he was a consistent voice of compassion, curiosity, and caring. He was a calm haven in our television set, a safe space where we always knew we were loved just the way we are.

And yet he was strong, too, just not in the way we often think of strength. He was a fierce defender of children and a champion of justice. His testimony before Congress about public television totally turned around the sentiments of a judge who was extremely skeptical before Rogers started speaking. He wasn't forceful and he didn't yell or cry; he just shared his feelings, indicated his trust in the judge's conscience, and explained the value of quality children's television programming in a way that was impossible to disregard.

Watch:

- YouTubewww.youtube.com

No one could deny the wholesome awesomeness of Rogers. He was the real thing, tried and true, through and through and the world misses him greatly.

It's quite well known that Rogers was the same man off-screen as he was on his show, and a video of his cast and crew pranking him once during his opening song offers a bit of delightful proof.

Check this out:

- YouTubeyoutu.be

Seriously, he was the most delightful human. His laugh when he sticks his foot in the second shoe—priceless. His "Thanks ever so much"—epic.

People have responded to the video on Reddit with gushing praise.

"Mr. Rogers thanking that man for a delightful practical joke just changed something in me for the better," wrote one commenter. "Off to go thank my husband for some stuff."

"What a magical person that just a clip of him having a laugh is making me well up," wrote another.

"My childhood was a scary place but when I turned on Mr. Roger’s, it all disappeared for awhile," shared another. "Thank you for being a light to so many children. May you Rest In Peace."

"An amazing human being and an utterly sweet person," wrote another. "We should all aspire to be the person Mr. Rogers knew we could be."

Indeed, we should.

Fred Rogers' response to the prank was not only a look into his kind and gentle character, but his consistency as well. In a 1998 episode of the prank show, Candid Camera, host Peter Funt played a prank on Rogers and he responded just as kindly and wholesomely as he did before. Rogers is staying in a hotel while attending a PBS conference where he will be the keynote speaker. Hoping to frustrate him, Funt (as a bellhop) relays to Rogers that his room has no TV (that's the gag!). Instead of respond with annoyance, however, Rogers surprises Funt and viewers by kindly saying he "doesn't use the television anyway" and has "enough TV in [his] life."

The interaction is as sweet and kind as Fred Rogers always was. Watch:

- YouTubeyoutu.be

The shoe prank outtake can be found on theMister Rogers Neighborhood website, which also houses tons of content about the show, the neighbors, the puppets, and Fred Rogers himself. They also upload five full, new episodes every other Monday for fans to enjoy. The first Monday of the month features episodes from the early years (1968-1975), and the third Monday of the month features episodes from the "Theme Weeks" (1979-2001). Fans can also watch Mister Rogers Neighborhood on PBS Kids, PLUTOTV, and Prime Video.

There may be many wonderful people who walk this earth, but there will never be another Fred Rogers. What a precious gift that we have so many hours of him on film to enjoy and share with generations to come.

This article originally appeared three years ago. It has been updated.

Carl Sagan and a sliced apple

The concept of the fourth dimension seems beyond human comprehension. As three-dimensional beings, we are unable to see beyond a physical object's height, width and depth. What else could there be?

Enter Carl Sagan, revered as one of the greatest science communicators of his time. He possessed a unique gift for demystifying complex scientific concepts, making them accessible and thrilling for the general public. In 1980, on Episode 10 of the groundbreaking PBS show “Cosmos,” Sagan embarked on a mission to explain the seemingly impossible fourth dimension.

What’s excellent about Sagan’s explanation is that he uses simple and relatable objects: an apple and a Tesseract, or a hypercube.

Sagan began by discussing how a two-dimensional being living in a flat world would perceive a three-dimensional object like an apple.

“Imagine we live in this ‘flatland’/2-D plane with no concept of ‘up’ or ‘down.’ Then along comes a 3-D object like an apple. We do not even notice it until it crosses our plane of existence — and even then, we have no idea what the apple is,” Sagan explains. “We see only a fragment as it passes through our plane. There is no way we can comprehend the 3-D quality/dimension of the apple, because it is more than we can understand. We only have the evidence of what has passed through our plane.”

Sagan then related this two-dimensional experience of the third dimension to how we might try to understand the fourth. To do so, he used the Tesseract, a four-dimensional cube, to demonstrate how difficult it is for us to perceive or visualize dimensions beyond our own three. At this point, Sagan is asking the viewer to expand their minds to understand the fourth dimension metaphorically.

Sagan’s demonstration of the fourth dimension isn’t just a wonderful explanation of a scientific idea that many of us find difficult to comprehend; it’s also a great example of how to teach complex ideas by combining clear explanations with thought-provoking visuals.


This article originally appeared last year.

Neil deGrasse Tyson pleasantly shocked by second-grader's question.

In March 2009, PBS sponsored an event at The Palladium in St. Petersburg, Florida, called “Cosmic Quandaries with Dr. Neil deGrasse Tyson.” The event featured a Q and A with the famed astrophysicist and science communicator. Over 800 people attended the event and had the chance to ask Dr. Tyson a big question.

The most memorable moment of the night was when a young boy named Clayton, a second grader, asked Dr. Tyson a question that was as high-minded as scientists could ask and also something that young kids would ask each other on the playground: “Will like a black hole be able to suck in another black hole?”

Clayton’s question was so great that it surprised Dr. Tyson. “Good question, it's not past your bedtime or anything?” he joked after being challenged by the young boy. “You're in second grade, and you're thinking about colliding black holes. You belong in like 12th grade, okay? Go tell your teacher I said put you in 12th grade.”

- YouTubeyoutu.be

What would happen if 2 black holes collide?

It just so happens that a student at Dr. Tyson’s college did his PhD thesis on colliding black holes so he could answer the question, much to young Clayton’s delight. As a tribute to Clayton’s great question, Dr. Tyson admitted that there was a lot about the thesis that he didn’t understand.

Dr. Tyson said that the collision of two black holes would create an extraordinary disturbance in the fabric of space and time because 2 black holes enter each other’s event horizon. The event horizon is the opening to the black hole, where the pull is so intense that nothing, not even gravity, can escape. So what happens when 2 event horizons start pulling on each other? It opens up the opportunity for time travel.

Once Dr. Tyson said “time travel,” Clayton’s eyes lit up and he knew he had asked a dynamite question.

neil degrasse tyson, astrophysics, black holesClayton asks Dr. Tyson a question.

“They've studied what effect that has on the passage of time, and it turns out there is a path you can take around two moving black holes that haven't quite collided yet where you can end up in the past of when you started that journey,” Dr. Tyson explained. “So it's backwards time travel — according to calculations from Einstein's general relativity — is enabled by the severely distorted fabric of space and time.”

However, even though the collision of black holes makes time travel possible, you probably wouldn’t survive anywhere near the cosmic event. “So beyond that, you really want to sort of watch that from a distance,” Dr. Tyson joked. Ultimately, after the collision both black holes will come together to create a new black hole that’s twice as large.

The video is a wonderful example of how, when kids are allowed to let their incredible imaginations run wild, they can come up with ideas that impress even the world’s most famous astrophysicist. In an appearance on the “Impact Theory” podcast, Dr. Tyson remarked that one of the most important things we can do as adults is encourage children to be the little scientists they are.

"Kids are sources of chaos and disorder. Get over that fact. Where does the disorder come from? It’s because they are experimenting with their environment. Everything is new to them, everything,” he said. “Your job is less to instill curiosity than to make sure you don’t squash what is already there.

gerlalt/Canva

James Earl Jones helped "Sesame Street" prove its pedagogical model for teaching kids the alphabet.

James Earl Jones had one of the most recognizable voices in the entertainment industry. Most of us probably heard that deep, resonant voice first as Darth Vader in "Star Wars," or perhaps Mufasa in "The Lion King," but just one or two words are enough to say, "Oh, that's definitely James Earl Jones."

Before his passing in 2024, Jones had been acting on stage and in film since the 1960s. He also has the distinction of being the first celebrity guest to be invited to "Sesame Street" during the show's debut season in 1969.

According to Muppet Wiki, clips of Jones counting to 10 and reciting the alphabet were included in unbroadcast pilot episodes and also included in one of the first official television episodes. Funnily enough, Jones originally didn't think the show would last, as he thought kids would be terrified of the muppets. Clearly, that turned out not to be the case.

Jones' alphabet recitation served as a test for the "Sesame Street" pedagogical model, which was meant to inspire interaction from kids rather than just passive absorption. Though to the untrained eye, Jones' slow recitation of the ABCs may seem either plodding or bizarrely hypnotic, there's a purpose to the way it's presented.

As education researcher and Children's Television Workshop consultant Gerald S. Lesser describes the video, "Mr. Jones' recitation of the alphabet takes a full minute and a half. He stares compellingly at the camera. At the time the sequence was made, his head was shaved for his role of Jack Johnson in 'The Great White Hope,' and it gleams in the close-up. His immense hollow voice booms the letter names ominously. His lip movements are so exaggerated that they can easily be read without the sounds.

The letter is shown on the screen a second or so before Jones says the name of the letter, and there is a pause after he says each one. This pattern allows kids to say the name of the letter if they recognize it and then have the name reinforced by Jones. If kids don't know it, they repeat it after him. For kids who are more visual or who have auditory processing issues, seeing the letter displayed and seeing Jones' clear mouth movements as he slowly says each letter are helpful learning aids.

Lesser and other researchers coined the term "James Earl Jones effect" for how the learning process played out.

Jones' alphabet segment may have helped prove the effectiveness of "Sesame Street"'s educational model, but it's also just mesmerizing to watch. When he gets to "J" and the facial expressions really kick in? Priceless.

Watch and enjoy:

This article originally appeared two years ago.