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I built an A frame hut as a large work space for projects. First I made a celt hatchet to cut timber for the hut.

A 31-year-old woman has turned her back on expensive rents and property prices - by living full time in a van. With an interior measuring just 13ft 2in long, 5ft 8in wide and 6ft 2in high, Eileah Ohning's home is her Freightliner Sprinter High Top van. The photographic producer from Columbus, Ohio, has lived in her compact four-wheel home since May 2017. Complete with a memory foam mattress, storage compartments, a desk and a camping stove, she even has plans to add in a shower, toilet and fridge. Eileah parks her van close enough to her workplace that she never needs to worry about the morning commute and showers at her local gym.

South-to-North Water Transfer Project: The huge populations filling China's northern megacities have a shortage of the single most necessary resource for life: water. To solve that problem, the Chinese will soon be moving 44.8 billion cubic meters of fresh water each year from the wetter South to the dryer North.

Jing-Jin-Ji: China is in the midst of a construction spree unparalleled in human history. These are the Megaprojects that will lift China into the future. China wants to make its capital, Beijing, the center of the world's largest supercity, by merging three provinces into one continuous megalopolis of 130 million people.

Many structures built by ancient Romans around 2,000 years ago are still standing, and some are still in excellent condition. Over the last decade, researchers have come discover the Romans' secret concrete recipe that has maintained so many of its now-ancient buildings.

Who built the pyramids? The colossal geometric monuments found at Giza and elsewhere in Egypt are some of Earth's most impressive constructions. Pyramids are truly wonders of the ancient and modern world.

Just because something is difficult doesn't mean it's impossible. Over the past centuries, archaeologists, historians, and engineers have reconstructed a great deal of the technology and science used to build the Egyptian pyramids. This week we look at ancient Egyptian mathematics, building techniques, tools, and culture to reconstruct the Great Pyramid's construction.

Atlanta's Mercedes-Benz Stadium is the most expensive stadium ever built. The $1.6 billion price tag was driven by a spectacular retractable roof design, an LED video board that is by far the world's largest, and the pursuit of LEED platinum certification.

Dude Perfect teams up w/ Pool Trick Shot legend Florian 'Venom' Kohler

Building a perfect igloo takes cool science!

ByFusion is taking plastic waste from the ocean and building something wonderful.

The Elytra Filament Pavilion was designed by a team from the University of Stuttgart.

Customize and Build Your Own Cardboard-Based House

I made a rough type of textile from bark fibre. This is the same tree I use for making cordage though I don't know its name. It has been raining a lot here lately (the video also shows how well the hut stands up to rain) and this caused a large wattle tree to fall down taking a few smaller trees with it.

'A playful cat hunts a speedy foe!'

What's the secret behind a perfect trebuchet? Adam tinkers with his mini medieval weapon to show us.

Watch A Laser Engraver Built From Scratch In This Hypnotic Video

The secret? Believe it or not, it's bacteria.

This Talented Man Builds A Musical Marble Machine Which Is Absolutely Marvelous

This Guy Decorates A House By Himself And It Is Unexpectedly Amazing

Concrete doesn't dry - it sets!