USB-C Cable Length and Charging Speed: What the Wire Gauge Actually Determines
by Dana Reyes
A 6-foot USB-C cable carrying 5 amps loses measurable voltage before it reaches your device. The power doesn’t…
Electronics
Bluetooth Speakers Drop Signal in Your Pocket — Here’s the Physics
by Dana Reyes
Your Bluetooth speaker works fine on a table. Clip it to your backpack or drop it in a…
Megapixels Don’t Tell You What a Security Camera Actually Sees
by Dana Reyes
An 8-megapixel security camera can produce blurrier footage of a person at your fence line than a 2K…
Hot-Swap Sockets Wear Out. Magnetic Switches Don’t Care.
by Dana Reyes
Every time you pull a mechanical switch out of a hot-swap socket and push a new one in,…
Open-Air Speakers Lose Most of Their Sound Before It Reaches Your Ear
by Dana Reyes
A sealed earbud pushes sound straight down your ear canal. A speaker mounted in a sunglasses temple pushes…
One Cable, One Bandwidth Budget: What Your Dock Actually Delivers
by Dana Reyes
A 5Gbps upstream link moves about 625 megabytes per second — total, shared across every port on the…
Why Your Dash Cam Keeps Eating SD Cards
by Dana Reyes
A parked car’s cabin reaches 70°C on a sunny day, and the windshield — where your dash cam…
Why Multi-Lens Security Cameras Lose Night Vision Faster Than You’d Expect
by Dana Reyes
Every infrared emitter inside a dome camera bounces light off the polycarbonate bubble between it and the scene.…
Surge Protectors Fail Without Warning — Here’s What Actually Wears Out
by Dana Reyes
A 900-joule surge protector can absorb exactly that — 900 joules — spread across every voltage spike it…