Stories by walterbell

Primitive tools / Survival builders: the carnage left behind (2021)

The British America Currency Act of 1764 (2020)

Steel Strength: Are Grade 8 bolts more brittle than Grade 5? (2018)

US vs. German Wire Cutter Pliers: Knipex, Snap On, Irwin, Klein, Wiha (2021)

Tool Industry Behemoths: The Companies Who Make and Own Most Tool Brands (2021)

Recreating Fast Oscilloscopes Is a Slow Process (2020)

How much force can bolt cutters exert? (2015)

Making a Hydraulic Pressure-to-Force Gauge (2018)

Low Cost DIY CNC Router

German economy minister warns of industry shutdown amid gas shortage

Knipex Plier-Wrench Review (2018)

What Is Pozidriv? How Does It Differ from a Phillips Drive? (2020)

German Wiha 11-in-1 Screwdriver Handles Are Made in USA (2020)

Protecting Society from Surveillance Spyware

Canada’s national police force admits use of spyware to hack phones

What causes long Covid? Canadian researchers think they’ve found a key clue

How to Select the Right Lab Stool for Your Scientists (2021)

Mechanical Engineering in Ancient Egypt, Part XII: Stone Cutting (2016) [pdf]

Home Network Rack for Structured Wiring Media Panels

How China Is Policing the Future