Grant Merk

By Grant Merk 8 posts

1. № GM007 Gear Thermal Mass on the Stovetop: Cast Iron vs. Carbon Steel vs. Clad Stainless The right pan is not about tradition or brand loyalty. It is about how much thermal mass your burner can actually drive, and matching the metal to that number. May 20, 2026
2. № GM002 Gear The Lumens Lie: Thermal Throttling in Pocket Flashlights A two-thousand-lumen rating is a ninety-second performance. What the light does at thirty minutes is the only number worth reading. May 6, 2026
3. № GM001 Gear The JIS Distinction: Why Your Tool Kit Is Stripping Your Gear The screw head is not stripping because you used too much force. It is stripping because Phillips and JIS look identical and they are not. May 1, 2026
4. № GM006 Gear The Color Rendering Index in Your Living Room Your living room looks slightly wrong and you have adapted to it. The number on the bulb package that explains why is CRI, and most manufacturers bury the one sub-score that actually matters. April 30, 2026
5. № GM003 Gear The Anatomy of Hinge Fatigue in Eyewear Glasses do not go loose because they are cheap. They go loose because the hinge type determines the failure mode, and most frames are built for neither repair nor longevity. April 27, 2026
6. № GM005 Gear The 15-Year Blender: Why Legacy Motors Endure A copper-wound AC motor with a bimetal thermal switch has no firmware to corrupt and no touchscreen to delaminate. That is why a 2009 Vitamix is still running in 2026. April 6, 2026
7. № GM004 Gear Hinge and Zipper Stress: Where Travel Bags Actually Die The shell material on your luggage is irrelevant. Bags die at the zipper slider, the wheel axle, and the telescoping handle collar, in that order. March 27, 2026
8. № GM008 Gear E-Ink as a Cognitive Tool: The Physics of Reduced Eye Strain An OLED display generates light to overcome the room. An e-ink display reflects light that is already there. That difference, before sleep, is not a preference. It is a measurable neurological input. March 9, 2026