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How To Make a Hexaflexagon: The Definitive Guide

How do you make a hexaflexagon in under a minute from any long scrap of paper without scissors, tape, or glue? 'Mathemusician' Vi Hart is well-known for her love of hexaflexagons, hexagonal flat paper models that can ...

How to make homemade slide whistles

Bamboo, PVC pipe, wood, or even a carrot! Slide whistles can be made from all sorts of materials, and are fun to make, play, and learn physics with. In this episode of Homemade Science, teacher Bruce Yeany shares his ...

Kasey Golden’s seven watercolor tips for beginners

How do you paint with watercolors without showing the brush strokes? How do you make gradient colors? What kind of paper should you use? In this helpful video, watercolor illustrator and YouTuber Kasey Golden shares s...

How to make a hexagonal starry sky LED night light

With a leftover piece of wood, lots of drilled holes, flexible LED strip lights and some quick wiring, Linn from the Darbin Orvar YouTube channel demonstrates how she made a hexagonal starry sky LED night light. Do...

Pottery, a stove, and a palm frond dome hut – Primitive Technology

Since buying new land in Australia's dense tropical rainforest, the man behind Primitive Technology has had access to better clay, good stone, and other abundant materials for building. In the video above, he makes sm...

Salt crystal snowflakes, DIY candy canes, & more holiday science projects

If you're looking for a few DIY winter science activities for the holidays, these Selection Box Science videos by The Big Bang UK Young Scientists & Engineers Fair are fun and festive options. Greg Foot demonstrates a...

Excavating 101 at the La Brea Tar Pits and Museum

How do paleontologists excavate fossils and what tools do they use? In this video from the La Brea Tar Pits and Museum, Lead Preparator Carrie Howard takes us behind-the-scenes of an excavation where the bones of a sa...

How to Make a Navigational Chart

Called Mattangs, Medos, and Rebbelibs, these ancient stick charts were made from the midribs of coconut fronds by the master navigators of what's now known as the Marshall Islands in Micronesia. The intersections of s...

How to make an Amazing 9 Layer Density Tower

Water is less dense than honey. Rubbing alcohol is less dense than water. Poured carefully on top of each other, from heaviest to lightest, they can create distinct layers. Add more liquids of different densities, suc...

How to make a Pumpkin Piano (using a Makey Makey)

How do you make a piano out of pumpkins? In this autumnal video, Maddie Moate and Greg Foot create a pumpkin piano with the help of a Makey Makey plug, clip, and play invention kit. We also get a quick tutorial about ...

How to draw a circle without a compass

Gather three sharpened pencils, three rubber bands, a few paper clips, some cardboard, a push pin, some string, and some paper to try these five solutions: How to draw a circle without a compass. Don't have that much ...

Most Satisfying Video of Pop-Up Cards designed by Peter Dahmen

Germany-based paper engineer Peter Dahmen designs and builds intricate paper structures and pop-up cards. Titled Most Satisfying Video of Pop-Up Cards, the video above showcases how Dahmen's personal and commercial wo...

The Challenge of a Straight Line and ‘Making Art Concrete’ – Getty Museum

How might you paint a perfectly sharp and clean straight line without blobs of paint or an unsteady hand creating a visually uneven edge? In concert with the Getty Museum's exhibition “Making Art Concrete: Works f...

How to equally share a cake between three people

When sharing cake between two people, the envy-free recommendation is for one person to cut the cake, making the two pieces as equal as possible, while the other person picks their preferred piece. With this agreement...

How To Forgive – The School of Life

How can we bring ourselves to forgive someone who has been wrong, mean, or thoughtless to us? The School of Life explores How To Forgive, an animated video that aims to change our perspective, and help us come around ...

How many ways are there to prove the Pythagorean theorem?

What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with elegant proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry and th...

Wet Book Rescue: How to repair a wet, damaged book

How can you save your book from ruin if you've spilled water on it or dropped it in a puddle? This easy-to-follow tutorial from the preservation experts at Syracuse University Libraries can help you rescue your wet bo...

Andrew Fox’s Calligraphy Animals Animated

In 2014, illustrator Andrew Fox published a series of minimal calligraphy animals that were drawn with his Pilot Parallel pen. In 2017, Fox worked with London-based animator Steve Kirby to create Calligraphy Animals A...

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