Plain-English explanations of the terms our apps touch. Short answers up top, longer reads if you want them. Updated whenever something changes.
A 0-9 scale that tells you how active the geomagnetic field is, and whether the aurora is reachable from your latitude tonight.
The ring around each magnetic pole where the northern (or southern) lights are most likely to be visible at any given moment.
A right-click menu that lets any app pass selected text or files into any other app, including small tools you install.
The strip at the top of your screen and the icons on its right side, which third-party apps can extend with their own controls.
Apple lumps anything it cannot classify into Other. It is almost never the system files you fear it is.
A simple measure of how busy your processor is right now, expressed as a percentage from 0 to 100 per core.
When you should pick one over the other, and why the wrong choice can lose detail after upscaling.
Apple's default photo format is smaller and sharper, but it trips up plenty of older tools. Here is when each makes sense.
The AI technique behind apps that turn photos into cartoons, anime, or oil paintings.
Exact copies, near-duplicates, and burst frames are three different things. iOS only catches one of them.
Why your neighbour's router can slow yours down, and how to pick a channel that does not collide.
Range versus speed, in plain English, and when to force a device onto one or the other.
The protocol your Synology, Mac, or Windows machine uses to share files over a local network.
The small set of patterns you actually need 90% of the time, with examples.
A way to turn raw binary into safe ASCII text, used in everything from email attachments to JWTs.
A short, signed string that a server hands a client to prove who they are without keeping a session on the backend.
A 4-4-4-4 breathing pattern used by Navy SEALs, surgeons, and stressed-out office workers alike.
A slower technique meant to help you fall asleep, popularized by Dr. Andrew Weil.
The original earthquake magnitude scale, what it actually measures, and why it has mostly been replaced.