Topic: construction

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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...

Drone footage of LEGO House, Denmark’s new LEGO visitor center

Fly over LEGO House, the incredible new LEGO visitor center in Billund, Denmark, the city where LEGO bricks were first invented. LEGO recently unveiled this silent drone footage of their 12,000 m2 (129,167 sq ft) buil...

A garden orb web spider weaves its web in time lapse

From BBC Earth, watch a garden orb web spider construct its web. Starting with a strong bridge line, anchor points, and frame threads that help it establish a web center, it weaves out, around, and around. The mix of ...

A full circle rainbow as seen from a construction crane

High over St. Petersburg, Russia, from the top of a construction crane at the Lakhta Center, a huge rainbow can be seen in its full form: a circle. Phil Plait explains the science in his 2014 Bad Astronomy article: ...

Building a DIY CNC-cut spiral staircase

This DIY Spiral Staircase was made with just over sixteen 12-layer plywood steps that are each rotated 30 degrees around a central steel pole. Designer and YouTuber Ben Uyeda of HomeMade Modern designed the layers to ...

The incredibly strong (and massive) web of the Darwin’s bark spider

The largest orb web documented in nature is made by Darwin's bark spiders, black, hairy looking arachnids that are "no bigger than a thumbnail." They construct their massive 'nets' across rivers to catch their prey, s...

The Solitary Life of Cranes, a trailer

I originally got fascinated by the idea that there is almost another world above London (or any other city); yet most of us never look up to notice cranes or their drivers. The drivers, in turn, can see everything goi...

An ‘Awesome’ 360° View At America’s First Offshore Wind Farm

At 5:30am on May 1, 2017, the Block Island Wind Farm replaced a local diesel generating plant and became America's first offshore wind farm. According to Business Insider, "it will emit about 40,000 fewer tons of gree...

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 Brick Double-Domino Effect Explained

In 2016, bricklayers in Teralba, NSW Australia filmed their domino-style technique for capping a concrete brick wall. The video went viral thanks to the surprising second part of the chain reaction: After the bricks f...

How to make Leonardo da Vinci’s self-supporting bridge

With a series of wooden poles and beams, "Stick-Boy" shows his Dad how to build Leonardo da Vinci's self-supporting arch bridge, also known as the emergency bridge. No nails, screws, rope, glues, notches, or other fas...

Demolishing an old hut to plant cassava and yams

Cassava are tuberous roots from a shrub. Yams are edible bulbs that grow both above and below the ground. They're both staple foods (despite the cassava containing some cyanide), and at Primitive Technology's 10 year ...

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...

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 ...

Dismantling the San Francisco–Oakland Bay Bridge

Weighing more than 25 tons each, the five 504 foot (153.6 meter) long trusses of the San Francisco–Oakland Bay Bridge's eastern span have each been dismantled and lowered onto a barge that takes them away for further ...

Building a House the Eco-Friendly Way with 3D Printing

Inspired by plant patterns, the reusability of waste materials, and architecture made from the earth in locations around the world, Ronald Rael and Virginia San Fratello of Emerging Objects studio are exploring the in...

How to build a grass hut – Primitive Technology

TIL: Grass huts require a lot of grass... about five days worth of collected guinea grass seems to work particularly well. From Primitive Technology, this is how to build a grass hut in about seven days: The design...

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