#mechanical-engineering
26 episodes
#5679: Glue, Don't Bolt: Anchoring Road Studs and Soil Anchors
Road studs get glued, not bolted — and plows eat anything proud of the pavement. Soil anchors are a different physics problem entirely.
#5674: Sharpen vs Hone: The Right Knife Tool
A whetstone is the pro's choice — but it might be the wrong tool for the knife you actually own.
#5599: Cantilever Racks: Why Long Things Need Different Steel
Why a ladder needs a cantilever, not a shelf — and how to actually mount one in an Israeli rental's concrete walls.
#5546: How Fast Before an Engine Can Swallow a Person?
A running turbofan at idle already moves hundreds of kilograms of air per second. Here's why the ramp is lethal long before takeoff thrust.
#5545: Jet Engines on Bicycles: The Physics of Bad Ideas
A pulsejet strapped to a bike sounds like a fighter jet — and burns 55 gallons an hour to move one guy who could have pedaled.
#5381: What Hotels Know About Laundry Machines
Washer-extractors, 400 G-force spins, and why a hotel laundry machine won't fit in your apartment.
#5362: Building a Workbench Superstructure From T-Slot
T-slot, welded steel, or strut channel? How to build a vertical frame that carries monitors, shelves, and lights off your desktop.
#5283: PH vs PZ: The Screw Bit Difference Nobody Notices
Two cross-head bits sit in every driver set. One was an accident that became a standard; the other was engineered on purpose and almost nobody can ...
#5268: 10 Absurd Power Tools That Actually Got Made
A motorized leaf pruner, a chainsaw bayonet, and the Suck Kut — ten power tools that solve problems nobody had.
#5127: Brushless vs Brushed Motors: What You're Really Paying For
Carbon blocks, copper windings, and a controller that changes everything. Here's what "brushless" actually means on your tools.
#5091: Hex vs Round Shank: When Drill Bit Footprints Fail
Why small hex bits snap, big reduced shanks twist, and what actually works for precision drilling.
#5053: Inside Daniel's Drill: Clutch, Gears, and Hammering
What actually changes when you twist a drill's selector ring? We open the housing on a Bosch GSB 120 LI to find out.
#4964: How SDS Bits and Rotary Hammers Really Work
Why your hammer drill bounces off concrete while an SDS rotary hammer powers through.
#4630: The EDC Belt Revolution: Nylon Webbing & Ratchet Mechanics
Why nylon webbing and ratchet buckles beat leather and holes — the material science and engineering behind the modern EDC belt.
#3962: What's Really Happening Inside That Jet Engine on the Tarmac?
The flashlight beam isn't casual curiosity. It's the last line of defense in aviation safety.
#3898: The Box That Warps: Moving vs Storage Physics
Why your Eurobox warps under a ratchet strap — and why cardboard doesn't.
#3869: How a Bendy Stick Transmits Torque
The surprising engineering inside flexible screwdriver extensions and how they transmit torque around obstacles.
#3865: The Spudger Problem: Thin vs Strong
Why pry tools bend and what materials science says about the perfect spudger.
#2920: What Actually Kills an Older Manual Car
Brake fluid, timing belts, and coolant — the cheap things people skip that cost them an engine.
#2893: Why Your Rotary Shaver Struggles With Thick Hair
Rotary shavers struggle with thick, stiff hair due to a fundamental design mismatch. Here's what's actually happening.
#2715: Why Studebaker Owners Are Different
What drives thousands of people to obsess over a car brand that died in 1966? It's more than nostalgia.
#2554: Bluffer's Guide to Car Talk: Sound Like You Know Engines
Stop saying "it went clunk." Learn the phrases that make mechanics think you know what you're talking about.
#2553: The Hidden Elegance of the Zipper
A deep dive into the Y-shaped tunnel, the bump-and-hollow geometry, and the silent history of the zip.
#1899: Why Japan's Vending Machines Thrive While America's Struggle
From Roman holy water to Japan’s soup-dispensing giants, we explore why vending machines jam—and why America’s are stuck in the past.