Lime mortar was used for millennia to adhere stone blocks together. It was the primary mortar until Portland cement was introduced in the 19th century. In this video, the Primitive Technology guy made lime mortar from the shells of rainforest snails. It's quite an involved process, and is fascinating to watch. How did people ever come up with making lime mortar in the first place?
The success of the Primitive Technology channel has spawned a raft of other channels like Evolution Technology, who built an Ewok-style primitive treehouse complex.
Researchers have found the world’s oldest known tattoos — a bull and a goat-like animal — on a 5,200-year-old Egyptian mummy in the British Museum. From The Independent: Along with a Copper Age European of almost identical vintage, found preserved in an Alpine glacier, the ancient Egyptian is the oldest tattooed individual ever discovered. However, […]
Gone are the days when you needed to pore over a 400-page physics textbook to learn about weight ratios, aerodynamics, and all of those other STEM concepts that let us take to the skies. Thanks to Force Flyers’ DIY Building Block Drones, you can foster your STEM knowledge as you build and fly your own functional […]
As more companies leverage cloud technology to unite and streamline their operations, the need for capable IT pros increases. But, as any IT guru will tell you, demand alone won’t get your foot in the door to this lucrative field. If you want to cash in on the demand and build a thriving IT career, […]
iOS 12 is finally here, which means now is the best time for aspiring developers to throw their hats into the app development game. While app development can be tricky for some, you can take an intuitive, beginner-friendly approach to understanding app creation and Apple’s latest iOS platform with the iOS 12 & Xcode 10 Bootcamp, […]