Topic: shapes

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Zoetrope pottery

Clay shaped on the potter's wheel. Patterns mapped on the computer and transferred. Shapes painstakingly cut. The resulting shallow bowl is baked in a kiln, then spun and filmed at just the right speed. In this Zoetro...

Why do geese fly in V formation?

Why do geese fly in a V formation? In this episode of World By Charlie, our friend Charlie Engelman observes some origami geese to better understand how the vortices of air behind their wings shape their signature V-f...

The Sphere-Packing Problem

The next time you're eating candy, ask yourself: "What's the best way to stack this?" Then start arranging them to find out. The answer to this question can be found in the shape of the candy. In this University of...

The Multiplying Rabbits Riddle

After years of experiments, you’ve finally created the pets of the future – nano-rabbits! They’re tiny, they’re fuzzy ... and they multiply faster than the eye can see. But a rival lab has sabotaged you, threatening t...

Island, an animated short

Whirring bugs, squeaking birds, hiccuping volcanoes, leaf creatures, tube creatures, crumbling cubes, fluffy poofs, amorphous mist. These creature noises all come together in a melodic cacophony of music in this anima...

Hypocycloid circular motion optical illusion

A circle made of points, shown here with small white balls, appears to roll around the inside edge of a larger circle, but is that what's really happening? File under: Cycloids, hypocycloids, and optical illusions. Th...

Stroboscopically animated tree ornaments

Created with an open source EggBot Pro kit, Jiří Zemánek of Advanced Algorithms for Control and Communications designed stroboscopically animated tree ornaments with custom patterns. The team also included Martin Gurt...

Reconfigurable Ghostkube sculptures

Since we last saw Stockholm-based artist Erik Åberg's Ghostkube project, he's investigated the geometry, creativity, and organic qualities behind these interconnected cubes, building prototypes and exploring ways that...

Triply Ambiguous Object by Kokichi Sugihara

Continuing his highly-regarded work in the illusion community, artist and mathematician Kokichi Sugihara won the 2018 Best Illusion of the Year award for his Triply Ambiguous Object. The piece includes a paper with an...

How to make an origami Butterfly Ball

Learn how to make an origami Butterfly Ball that bursts apart when you hit it. This easy-to-follow tutorial by Jo Nakashima takes us through each step. For this design by Kenneth Kawamura, you'll need 12 small square ...

Can you solve the alien probe riddle?

Your team has developed a probe to study an alien monolith. It needs protective coatings — in red, purple and green — to cope with the environments it passes through. Can you figure out how to apply the colors so the ...

Raindrops: What do they really look like?

When you draw raindrops, how do you draw them? Are they tear-shaped with the point at their tops? Is that really what raindrops look like? Dr. Joe Hanson asked that very question. He then tested what happened to water...

‘Making’ magnetic sculptures

How are these magnetic sculptures magically clicking into shape from undefined piles? This Magnetic Games video in reverse turns the destruction of these intricate-looking sphere, cube, and rod magnet sculptures into ...

How to draw a cubetacular hole in your paper

Learn how to draw a hole in your paper with falling and floating 3D cubes. This short video from Circle Line Art School shares how to easily create the anamorphic drawing illusion with a pencil and a marker. Impro...

Types of Triangles, a Flocabulary math music video

This triangle is acute. Right triangle, obtuse. Isosceles, scalene. Equilateral, now you know the whole team. Learn the basics of triangles with Types of Triangles, a catchy and informative math music video from th...

Herman Brown is Feeling Down

"Herman's quiet world is suddenly interrupted by something loud and stressful." What is that noise? What is that feeling? Is it as big as it seems or are things not quite that bad? Herman Brown is Feeling Down is a...

Portal icosahedrons

A steel icosahedron—a polyhedron with 20 faces—is lit with bars of LED light, illuminating the transparent mirrors within. Looking inside reveals seemingly endless mazes within the space. This video by filmmaker Eric ...

Making strawberry hard candy drops on a restored machine from Alaska, circa 1890

This machine belongs to and has been returned to the Klondike Gold Rush National Historic Museum in Skagway Alaska, and to this day there aren't many good roads into it... Imagine how hard it would have been to get th...

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