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The secret belowground life of newborn meerkat pups

The sweet cooing, chirping sounds, the small furry faces, the incredibly intimate view that we don't often... ever... get to see. Via the BBC's Earth Unplugged and Animals with Cameras, specifically a wild Kalahari me...

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 are pencil sharpeners made?

Each part of a small 'prism' or 'pocket' pencil sharpener is cut, shaped, stamped, baked, bathed, polished, and assembled with such specifically made machinery, traveling through feeds and funnels along the way. See h...

How do birds learn to sing?

A brown thrasher knows a thousand songs. A wood thrush can sing two pitches at once. A mockingbird can match the sounds around it — including car alarms. These are just a few of the 4,000 species of songbirds. How do ...

Smashing stuff with neodymium magnets

What happens to a cluster of grapes when it's in between two large, very strong and potentially dangerous neodymium magnets as they collide? Science presenter Kevin Delaney and his team demonstrate the power of these ...

Koi are unusual kitchen helpers in the kabata of Harie, Japan

For over 300 years, the village of Harie (針江) in Japan has thrived on its interconnected system of mountains, canals, streams, rice fields, spring water, and kabata, small separate rooms that are used as a kitchen s...

How traditional Nabulsi soap is handmade in the Toukan Soap factory

In the city of Nablus in the West Bank, workers at the Toukan Soap factory make natural soap by hand. The family-owned company is "the oldest survivor of this once-prominent industry," one of the two remaining soap fa...

An innovative edible spoon, a smart alternative to plastic waste

Plastic cutlery has been around for years, widely considered the only choice for cheap, disposable cutlery. Knowing the threat plastic poses to our environment and health, Narayana Peesapaty created a tasty and nutrit...

The rise and fall of the Inca empire

It was the western hemisphere's largest empire ever, with a population of nearly 10 million subjects. Yet within 100 years of its rise in the fifteenth century, the Inca Empire would be no more. What happened? With...

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 ...

Untangling the Devil’s Corkscrew – PBS Eons

In the late 1800s, paleontologists in Nebraska found huge coils of hardened sand stuck deep in the earth. Local ranchers called them Devil's Corkscrews and scientists called them Daemonelix. It was clear these corkscr...

L’orchestre d’hibernation animaux and how animals hibernate

A flute playing wood frog who freezes. A bassoon blowing painted turtle who (ahem) breathes through its butt. A trumpet blasting common poorwill who falls asleep anywhere, anytime. A harp plucking mosquito who goes in...

Ceramic artist Michelle Erickson recreates an 18th-century agateware teapot

Recreating an 18th century artifact is a painstaking process that requires mastery of the medium, an understanding of esoteric artisanal methods, and lots of examination and experimentation. During her 2012 artist res...

How Chloe Kim made the 2018 Olympic Halfpipe Snowboard Team

Chloe Kim's gold-winning women's snowboard halfpipe performance at the 2018 PyeongChang Winter Olympics, featuring her back-to-back 1080s, has made her a household name, but the 17-year-old has been putting in the pra...

Peru’s rare Black Beauty Stick Insect

This is the black beauty stick insect, a rare species only found in a tiny 12-acre area high in the mountains of northern Peru. Only discovered in 2005, not much is known about these insects, but they are believed to ...

Making Artificial Earthquakes with a Four-Tonne Steel Ball

In Göttingen, Germany, there's a four-tonne steel ball that can be raised up a 14-metre tower -- and then dropped in less than two seconds, crashing back to earth. It makes tiny, artificial earthquakes. Tom Scott v...

The spiral nest architecture of Australia’s stingless sugarbag bee

The Australian native stingless bee Tetragonula carbonaria, commonly called the sugarbag bee, is the only known species to build their hexagonal honeycombs in a spiral pattern. In this clip, entomologist and ex-CSIRO ...

Bottlenose dolphins of Jeju Island encounter a Haenyeo diver

This pod of Indo-Pacific bottlenose dolphins (Tursiops aduncus) lives in the waters around the volcanic islands of Jeju, South Korea all year round. Although they are social creatures amongst themselves, seeing humans...

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