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Topic: dirt
Soil Life in Action: Bioturbation with and without soil fauna
Bioturbation is the mixing of (plant) residues into soils and sediments by biotic activity. It is one of the fundamental processes in ecology, as it stimulates decomposition, creates habitats for other (micro)fauna an...
Why isn’t the world covered in poop?
Each day, the animal kingdom produces roughly enough poop to match the volume of water pouring over Victoria Falls. So why isn’t the planet covered in the stuff? You can thank the humble dung beetle for eating up the ...
Growing kidney bean & spinach plants, soil cross-section time lapses
See a kidney bean plant germinate, spreading its roots and sprouting up and up with its undulating green leaves, in this time-lapse by YouTuber GPhase. Each shot is captured 9 minutes 36 seconds apart at 30 frames per...
Speed up geologic time with a DIY squeeze box
Build. Observe. Play in the sand and dirt. Making your own easy-to-build squeeze box is fun for lots of different reasons, including educational ones. This Science Snacks video with Eric Muller from The Exploratorium ...
Transforming Human Poop Into Eco-Friendly Fertilizer
Everyone poops. But not everyone around the globe has access to a clean toilet. Some communities in Haiti have set up a clean and healthy sanitation system that can also provide a homegrown resource for boosting food ...
How deep have humans dug into the Earth?
From the deep end of Olympic swimming pools to The Paris Catacombs to Switzerland's Gotthard Base Tunnel to the Z-44 Chayvo Well in eastern Russia, travel down into the planet via this surprising Tech Insider animatio...
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 does a tunnel boring machine work?
How are new subway tunnels constructed underneath a busy city like Barcelona, Spain? This promotional animation demonstrates how a tunnel boring machine—specifically a Herrenknecht TBM with an Earth Pressure Balance S...
The Archaeology of Crossrail and the history of London
The construction of London’s newest railway, which will be known as the Elizabeth line when services begin in 2018, has given archaeologists a unique chance to explore some of the city’s most historically important si...
Four minutes of an armadillo digging a hole
With a leathery shell and front leg claws made for digging, armadillos burrow to find food and to make underground shelters. The armadillo in the video above, identified as a six-banded or yellow armadillo by YouTuber...
Why the Giant Sequoia Needs Fire to Grow
Giant sequoias, the planet's largest trees and among the oldest living things on Earth—many of the largest are over 3,000 years old—depend on fire to help them reproduce. Learn how a destructive force is necessary for...
Erie Type A and B Steam Shovels from over 100 years ago
Watch a 1915 Erie Type A Steam Shovel working at the Welland Country Fair, filmed in the summer of 2016. The coal-fired Erie type A and B were created by The Ball Engine Company, an industrial steam engine company fou...
A Real-Life Bone Collector: Recovering an Extinct Human Ancestor
Follow biological anthropologist and 'bone collector' Dr. Marina Elliott deep into the ancient underground crevasses that would reveal around 1,500 bone fragments belonging to Homo naledi, a new species in human linea...
Building a ‘bed shed’ sleeping shelter – Primitive Technology
Bundles of long dry grasses thatch the roof of this elevated sleeping shelter. The bed itself is woven from lawyer cane and covered with a woven bark mat. It's all held up with wooden posts tied with vines. Primitiv...
Barrel Tiled Shed & Tiled Roof Hut – Primitive Technology
How do you create a fire and rain proof work shed when you only have what's available to you in an Australian forest? Primitive Technology takes on the challenge in this Barrel Tiled Shed video. Some details from his ...
A puffin and its puffling surface from their underground nest
Though puffins spend much of their life at sea, when they nest on land, they nest underground in the Farne Islands and elsewhere around the globe. Their babies are called pufflings, and in this BBC Earth clip from Wor...
Hikaru dorodango, handmade ‘shining mud dumplings’
Around 2001, Professor Fumio Kayo of the Kyoto University of Education made news by bringing the Japanese art of hikaru dorodango (どろ だんご or 'shining mud dumpling') into preschool classrooms as a play activity, t...
How Does Oakland Turn Food Scraps to Soil?
Though you may not see a compost bin next to the trash and recycling bins where you live, in California's Bay Area, a green bin is the norm. From those green bins, food scraps, yard waste, and the like can be transfor...
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