The Split-Belt Machine

The Split-Belt Machine

Here’s a weird treadmill that has left and right belts that can move at different speeds. It’s called a split-belt treadmill and people use them for rehabilitation. Here’s a weird little cart with left and right wheels that have different diameters. They’re geared to move together. It has stabilizers and a rudder to keep it…

3D printing a fast-morphing smart material

3D printing a fast-morphing smart material

For decades, scientists have been working on materials that can change shape. Whether it’s bending, contracting, or wriggling along, these kinds of smart materials could be useful for robotics, engineering and medicine. So far, many of these materials transform relatively slowly. Sometimes they need to be connected to a controller with wires or tubes, or…

The mighty mathematics of the lever – Andy Peterson and Zack Patterson

The mighty mathematics of the lever – Andy Peterson and Zack Patterson

A famous Ancient Greek once said, “Give me a place to stand, and I shall move the Earth.” But this wasn’t some wizard claiming to perform impossible feats. It was the mathematician Archimedes describing the fundamental principle behind the lever. The idea of a person moving such a huge mass on their own might sound…

What really happened at the Big Bang?

What really happened at the Big Bang?

Modern science is full of all sorts of mind-blowing theories that describe and explain the behavior of the cosmos under conditions that nobody has directly observed. Perhaps the biggest example is the study of the Big Bang, which is the beginning of the universe itself. I’ve talked about the Big Bang in other videos, and…

World’s Longest Home Run (The “Mad Batter” Machine) – Smarter Every Day 230

World’s Longest Home Run (The “Mad Batter” Machine) – Smarter Every Day 230

– [Destin] Oh dear me. – [Jeremy] I’ll let you know! (machine whirring) – Ready? Oh my goodness. (bat snaps) (laughs) (Smarter Every Day Intro music) The major league baseball home run distance record is around 575 to 580 something feet, depending on where you get your data. Today on “Smarter Every Day”, we’re gonna…

Could You Survive JUMANJI?

Could You Survive JUMANJI?

(intense music) (drums pounding) (blowing) – I wonder if it still works. Guys, I found this game on the beach! Okay, everyone get a controller! (game beeps) What’s happening? (Phil): I don’t know! I don’t know! (Toby): Unplug it, unplug it! (Jake): I did unplug it! I unplugged it! (screaming, electricity zapping) – Toby, where’d…

The World’s Coolest LEGO Set!

The World’s Coolest LEGO Set!

The humble LEGO figure. First produced in 1978, there are over 3.7 billion of them worldwide. The LEGO minifigure has been tested to many extremes. But one that’s never been explored before is, how cold can a LEGO figure get? OK, so maybe this is not something you have asked yourself, but think about it,…

Scientists Claim They Made Time Go Backwards…But Did They?

Scientists Claim They Made Time Go Backwards…But Did They?

Time travel to the past is basically impossible without breaking some laws of physics and acquiring plutonium from some Libyans. But time travel to the future is easy, we’re all doing it right now. So why does time go forward and not back? The idea that time only flows in one direction is called the…