HVAC
84 episodes · Page 2 of 4
#4633: How In-Flight Wi-Fi Actually Works at 35,000 Feet
Daniel measured 150 Mbps over the Atlantic. Here's how the antenna, cabin network, and routers make it possible.
#4562: Weighing Euroboxes: DIY Load Cells vs. Off-the-Shelf Sensors
Daniel wants to know if his industrial shelving is overloaded. The answer involves 24-bit ADCs, micro-deformation, and a surprising market gap.
#4553: Solar Window Films: Cool Your Rental Without Breaking Glass
Modern window films block 97% of infrared heat while staying clear. Here's how they work and which to choose for a rental.
#4484: Cooling Cities Without Cooking the Planet
Paris district cooling, passive design, and whether we can stay cold without climate guilt.
#4464: Building a $120 Porch Monitor for Construction Noise
Daniel built a weatherproof sensor system to track construction noise and dust while he's away for the summer.
#4389: The $120 Noise Sensor That Could Change Cities
One Jerusalem resident wants to track construction noise from his balcony. Here’s why that’s harder than it should be.
#4345: HVAC Balancing for Renters: Cardboard, Coils, and CFM
Can blocking vents actually help a hot bedroom? The physics of airflow, coil freeze risks, and what renters can actually do.
#4333: Sealants vs Fillers: What Actually Works
Why your bathroom caulk peels and how to fix it with the right product for every gap.
#4294: How to Fill a 6U Comms Cabinet: Shelf, Fan, Cable Guide
Empty box, no shelves, no instructions. Here's how to actually fit a modem, mini PC, switch, and NAS into a shallow 6U cabinet.
#4199: Mold Farts and Dirty Socks: AC Filter Science
That musty smell isn't just gross — it's mold's metabolic exhaust. Here's what's growing in your filters and how to fix it.
#4154: Wi-Fi Settings That Actually Matter
What those Ubiquiti controller settings actually do—and why maxing everything out breaks your network.
#4062: How to Keep a Baby's Room Comfortable With a Dumb AC
Smart sensors + dumb AC + PID control = better than a Nest for keeping your infant comfortable at night.
#3795: The Fifteen-Cent Screw That Stops Server Builds
A seized M.2 screw, a missing heat sink, and why inventory blind spots cost more than any technical skill.
#3785: Standalone GPON ONTs: Your Fiber Upgrade Guide
Fiber-to-fiber SFP sticks vs traditional ONT bridges — what works, what doesn't, and why your ISP might block you.
#3762: Why Your Screen Won't Go Dark Enough at Night
LEDs can't truly dim low. Here's the physics — and the surprising fix that has nothing to do with blue light.
#3678: Is Gas in Our Homes a Needless Risk?
A near-fatal gas explosion in Jerusalem raises hard questions about the safety of gas in our homes and apartments.
#3544: What 4U Actually Means: Rack Gear for Home Labs
Rack height units, case costs, and cabinet types explained for home users and small businesses.
#3539: Mapping a Room with Just Your Phone
Can your phone turn a video walkthrough into a measured 3D model? We break down the tools and the real-world limits.
#3242: Where to Put White Noise Machines for ADHD Focus
Desk placement is wrong. Here's where to put white noise machines for actual sound masking that works.
#3043: Cold Water Without Plumbing: A Renter’s Guide
Compressor vs. thermoelectric cooling, countertop vs. floor units — what actually works in a Jerusalem summer.
#2960: Small Camera vs Phone for Baby Videos
Can any compact camera beat a phone for capturing newborn moments in low light? We break down the options.
#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.
#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.
#2846: The Quest for Earbuds That Actually Fit
Why your earbuds won't stay put — and three paths to a secure fit, from aftermarket tips to custom molds.