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, […]
When it comes to tech, smaller is better, and these items fit the bill both in terms of size and price. We’ve rounded up our favorite stocking-ready gadgets, most of which are already on sale – and you can take an additional 15% off any of them with the special code MERRY15. iPM 3-in-1 Fast […]
So you’ve got a good eye for pictures? We’ve got a good eye for deals. And this holiday, there are some solid deals out there for photographers. Check out some of our favorite recent discounts on gear, software, and e-learning for photogs of any experience. Gadgets RevolCam: The Multi-Lens Photo Revolution for Smartphones This […]
Take a scroll through any app marketplace and you’ll see that the doors are wide open for any game these days – and any game developer. Like any creation, virtual or analog, it all starts with an idea. And if you’ve got one of those, the Complete Unity Game Developer Bundle can walk you the […]