Computing
Non-AI computing: networks, servers, hardware, software engineering, and digital security and privacy.
#3956: The Four-Second Crossing: How Traffic Lights Actually Work
A Jerusalem crossing gives pedestrians 4 seconds for 12 meters. The hidden safety systems most people never see.
#3953: Bats in Your Bumper: Parking Sensors vs. Lane Keeping
Ultrasonic parking sensors vs. highway lane keeping—two radically different technologies that answer the same question.
#3918: NFC Tags vs. the "We're Out" Button
One tap to restock milk. Why is that so hard to find on Android?
#3907: Why the DNS Postman Metaphor Fails Learners
The postal metaphor for DNS is everywhere—but it's failing millions of learners. Here's what works better.
#3904: Manual NAT vs Double NAT: The Measurable Reality
Tracing OPNsense packet paths and quantifying double NAT's real latency cost.
#3902: Manual Network Config Demystified
Why your Linux box asks for gateway, subnet mask, and IP separately — and what each actually does.
#3901: Traceroute Beyond the Basics: Path Diagnostics
Discover what traceroute actually reveals about network paths, firewalls, and multi-WAN failover.
#3892: Unlocking Hidden Android Cellular Diagnostics
Fix slow Android data by using hidden settings like dialer codes, APN configs, and band selection—no root required.
#3888: Stitch Like a Pro: City Panoramas on Android
Turn your phone into a virtual medium-format camera with manual RAW stitching for gallery-worthy cityscape prints.
#3884: Why Your Wi-Fi 7 Mesh Might Make Things Worse
Most people either under-provision or over-provision their home networks. Wi-Fi 7 makes both mistakes more expensive.
#3883: Inside OPNsense Tunables: Kernel Variables Explained
What OPNsense tunables actually do, how they work under the hood, and when to touch them.
#3882: Fiber vs Ethernet from Your ONT
What to run from your ONT — Ethernet, fiber, or both? A practical breakdown of the two topologies.
#3875: Why Netflix Breaks on the Moon
Two and a half seconds of ping time breaks the internet. Here's why space communication is so hard.
#3874: How to Tag 4000 Episodes Without Losing Your Mind
Why tagging breaks at scale, and how a two-stage AI pipeline fixes it for good.
#3870: Laser Engravers for Home Labs: Are They Worth It?
Desktop laser engravers now cost less than a 3D printer. But can they actually label your home network gear?
#3869: How a Bendy Stick Transmits Torque
The surprising engineering inside flexible screwdriver extensions and how they transmit torque around obstacles.
#3864: How to ID Mystery Metal Before You Drill
A practical workflow for identifying unknown metals before you engrave, drill, or grind them at home.
#3859: How Gartner Shapes Tech Buying (and Who Pays for It)
Gartner's Magic Quadrant and Hype Cycle shape billions in tech spending. But who's really paying the analyst?
#3835: Slack's Accidental AI Agent Superpower
The tool that failed to kill email is now thriving as the notification backbone for AI agents. Here's why.
#3834: How Celebrities Hide Their Phone Numbers
The three-layer system of tech, legal, and social defenses that keeps celebrity phone numbers private.