In 1327, a monk named Richard of Wallingford drafted plans for an engineering marvel: one of the very first truly mechanical clocks in the world, which helped to usher in a complete reinvention of humanity's perception of time...

Scientists have been trying to pull blood out of the body and put it back in again since the early 1800s, but bypass machines haven't been easy to get right.

Learn about Horizon radiation and why it's essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation.

In this video Paul Andersen shows conceptual thinking in a mini-lesson on cause, mechanism and effect.

T
ERMS:
Cause - a thing that gives rise t
o an event
Ef
fect - an event
Mechanism - the process und
erlying a...

Mathematician Mark Kac asked the question "Can we hear the shape of a drum?" It was a question that took over 20 years to answer. Sine waves, fundamental frequencies, eigenvalues, this episode has got it all!

Scientists have been trying to pull blood out of the body and put it back in again since the early 1800s, but bypass machines haven't been easy to get right.

In which Mike Rugnetta teaches you about the hero of The Congo, Mwindo! Mike will tell you the stories of Mwindo's birth, his many deaths, and his evolution from a braggy superhuman baby to a wise, superhuman leader of his people. Along...

Artist eric Dyer spent years working at a computer to produce images for the screen. Longing to get his hands back on his work, he began exploring the zoetrope, a popular 19th-century device that was used to create the illusion of motion...

This small animal might seem like a run-of-the-mill rodent at first, but its huge back legs can produce kicks hard enough to let it rumble with rattlesnakes looking for a meal.

Poet Suheir Hammad performs two spine-tingling spoken-word pieces: "What I Will" and "break (clustered)" -- meditations on war and peace, on women and power. Wait for the astonishing line: "Do not fear what has blown up. If you must,...

In this video Paul Andersen compares and contrasts mechanical and electromagnetic waves. Both types of waves transfer energy through oscillations but mechanical waves requires a medium. Several examples of each type of wave are included.

Many modern musical instruments are complicated pieces of machinery with many moving parts. But the cajon is simply a drum and a stand and a seat all in one box. Paul Jennings explains the history behind the cajon and how it has become...

In an era long before phones, radios, telegraphs, or even writing systems, the people of Sub-Saharan Africa had already mastered one of history's quickest and most effective long distance communication systems.

Doctor Mac Wheelie has a gray cement mixer that needs to be painted in bright colors. Doctor Mac Wheelie decided to make the drum two-colored, taking gray and orange colors. The cab she will paint blue, but the wheels will be black....

In this video, we practice handwriting the tall letters This interactive video teaches the strokes while encouraging kids to practice along. Whether you're a classroom teacher or homeschool parent this video will give you practical...

Fartbox – How to Beatbox with SK Shlomo

Start Beatboxing – SK Shlomo

Howcast - Learn three advanced beatboxing techniques in this Howcast video with Beatboxer Entertainment.

Howcast - Learn how to play the rudiments from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn how to read drum lesson sheet music from drum expert Jason Gianni in this Howcast video.

Howcast - Learn about the snare drum from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn how to identify the parts of a drum set from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn how to play a full stroke from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn about traditional grip, a technique to hold drumsticks, from drum teacher Jason Gianni in this Howcast drum video.