The screwdriver dates back to the 15th century, invented to manipulate screws in armor and construction. Those poor armored soldiers were screwed before they ever took the battlefield. Today, the screwdriver is an indispensable tool in building, furniture making,...
The first power saws were powered by steam — the same stuff that makes your teapot whistle. These saws significantly increased productivity, enabling large-scale lumber processing to meet the rising demand for timber during industrial expansion. Steam technology...
The ancient Egyptians drilled deep holes into limestone and granite, leaving Egyptologists to puzzle over how they did it. Today, drilling is more common and less mysterious. Every DIYer has a drill — or several — in the garage and a complement of specialized drill...
The Bertha Tunnel Boring Machine dug the SR 99 tunnel in Seattle and measured a massive 57.5 feet in diameter and 326 feet long. Its custom cutter head cost over $80 million. Though less impressive, the drill bits we’ll discuss in this blog do essentially the...
Prehistoric humans gathered around fires to keep themselves warm, ward off predatory animals, and cook their food. Fast-forward to today. Little has changed, except that the predators are mostly gone from urban landscapes. People still gather around fires, but now...
