#material-science
87 episodes · Page 3 of 4
#3049: Why Your Screwdriver Strips Screws (It's Not You)
The real difference between a $3 screwdriver and a $12 one isn't marketing — it's metallurgy and tip tolerance.
#3048: How to Read Sandpaper Like a Pro
Grit numbers, mineral types, and why your pine sandpaper clogs instantly.
#3042: How Blackout Curtains Actually Stop Light
Three-layer construction, acrylic vs. laminated barriers, and why most "blackout" curtains let in 2-5% light.
#3041: The Desk That Won't Sag: Wood Species & Finishes Compared
White Oak vs Ipe vs plywood? Polyurethane vs hard wax oil? The gold standard desk surface for multi-monitor setups.
#2987: How Epoxy Actually Works (It's Not Just Stronger Glue)
What makes epoxy different from superglue? The answer involves crosslinked polymers, amine hardeners, and bonds stronger than the materials they join.
#2974: How Safety Vests Actually Reflect Light
Glass beads vs. microprisms, ANSI classes, and the physics of staying visible at night.
#2970: The $300,000 Paint Job: Inside Airliner Coating Science
Why painting a 737 costs more than a house and involves self-healing chemicals, thermal stress math, and 1,100 square meters of precision.
#2962: Why Command Strips Fail (And What Actually Works for Renters)
The physics of why adhesives fail, the law on nail holes, and a decision tree for hanging art without losing your deposit.
#2953: Marker Ink vs. Synthetic Fabric: The Real Test
Oil-based vs. water-based markers on neoprene and nylon — which ink actually survives rain, flexing, and UV?
#2948: Toolbox Survival in Extreme Sunlight
UV radiation destroys plastic toolboxes from the inside out. Here's what actually survives Israeli sun.
#2947: Monocles, Pocket Watches & the Science of Obsolete Tech
Why people still train their facial muscles to wear monocles in 2026 — and the precision engineering inside modern pocket watches.
#2942: Why Your Outdoor Storage Crumbles in 3 Years
Plastic outdoor storage fails fast in harsh sun. Here's what actually works in extreme UV climates.
#2908: Why Backpack Labels Vanish in the Wash
Paint markers flake, xylene bleeds, and most "permanent" labels fade fast. Here's the chemistry that actually survives.
#2901: Can Ink Outlast Stone? The 5,000-Year Quest for Permanence
Egyptian lampblack lasts 4,000 years. Iron gall ink eats through paper. Which marking tech actually wins?
#2894: Dishwasher vs Marker: The Chemistry of "Permanent
Why your Sharpie fails in the dishwasher, and what actually works for plastic, fabric, and food safety.
#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.
#2851: How a Wax Stick Beats Sharpies on Steel
The industrial marking tool that outlasts Sharpies, survives 2000°F, and sticks to oily steel.
#2791: How to Pick a Marker That Actually Stays On
Why do “permanent” markers fail on plastic? The answer is polymer chemistry, not bad luck.
#2564: The Hidden Genius of Everyday Objects
Nichrome wire, bimetallic strips, and the chemistry of browning — how a $15 appliance packs serious engineering.
#2399: When Permanent Means Surviving 400°C
Why do industrial markers like the Edding 780 outperform art store Sharpies? It’s all about chemistry, adhesion, and surviving harsh conditions.
#2323: Why Nitrogen Changes Everything
Discover the physics of Guinness’s nitrogen foam, the engineering behind the widget, and why it feels so different from other beers.
#2252: Why Lithium-Ion Won (And What's Next)
How the physics of lithium made it the king of batteries, and the engineering breakthroughs—from silicon anodes to solid-state cells—that are pushi...
#2245: Whiteboard Markers: The Tool Everyone Ignores
Why marker quality matters more than the board itself, and what separates a tool that sparks ideas from one that kills them mid-thought.
#2236: Metal at Forty Thousand Feet
Could 1903 metallurgy have built a plane to fly at 40,000 feet? The answer reveals how materials science, not aerodynamics, was aviation's deepest ...