Utilities4 min read
How to Free Up Storage on an Android Phone
How to free up storage on Android: what fills a phone, Android's built-in Free up space tool, backed-up photos, downloads, app archiving and large PDFs.
Page 5 of 42
All articles, page 5
Articles 97–120 of 990, newest first. To read by subject instead, start from a category or a topic hub on the blog’s front page.
- Education4 min read
Composition and Inverse Functions: When an Inverse Exists and How to Find It
How to compose functions, why order matters, when a function has an inverse, and how to find and check one, with examples on finite sets and the integers.
- Education4 min read
Primes and the Fundamental Theorem of Arithmetic: Why Factorisation Is Unique
Every integer above 1 is a product of primes in exactly one way. Why that needs proof, how existence and uniqueness are shown, and what it tells you.
- Education4 min read
Generating Functions: Turning a Sequence into an Algebra Problem
A generating function stores a sequence as the coefficients of a power series. How to build one, the core identities, and how to count and solve recurrences.
- Anime & Creative4 min read
Google Play Content Ratings: What Everyone, Teen and Mature Mean
Google Play content ratings explained: how IARC sets them, what ESRB, PEGI and generic labels mean, what a rating does not tell you and where to find it.
- Utilities4 min read
How to Get a Refund on Google Play: Time Limits and Steps
How to get a Google Play refund: when to ask Google or the developer, the steps, how long decisions and payouts take, and why cancelling is a separate step.
- Education5 min read
Graph Coloring and the Chromatic Number: Scheduling, Maps and Limits
A proper coloring gives adjacent vertices different colors. How to find the chromatic number, the bounds that help, the four color theorem, and scheduling uses.
- Education4 min read
Graph Isomorphism: How to Show Two Graphs Are (or Are Not) the Same
Two graphs are isomorphic when a relabelling turns one into the other. How to prove it with a bijection, disprove it with an invariant, and avoid the traps.
- Education4 min read
Graph Theory Basics: Vertices, Edges, Degrees and the Handshake Lemma
The vocabulary of graph theory explained with small examples: vertices, edges, degree, paths, cycles, connectivity and the handshake lemma, with its proof.
- Education4 min read
Hamiltonian Paths and Cycles: Why No Simple Test Exists
A Hamiltonian cycle visits every vertex exactly once. Why no simple test exists, the sufficient conditions that help, and how to rule one out.
- Utilities3 min read
HDR Video on Android: HDR10, HLG and Dolby Vision Explained
HDR video on Android explained: how HDR differs from SDR, HDR10, HDR10+, Dolby Vision and HLG, what playback needs, and why HDR may look duller than intended.
- Action & Arcade4 min read
Hero TD Idle Tower Defense Guide: Heroes, Upgrades and the Six Modes
A guide to Hero TD Idle Tower Defense: how the hero fights beside your towers, what to upgrade, the modes and missions, and how to learn from a loss.
- Health4 min read
High-Protein Breakfasts: What Common Options Provide, by the Numbers
High-protein breakfast ideas with real numbers: protein and calories for eggs, yogurt, cottage cheese, oats, toast and burritos, from USDA data.
- Sports & GM3 min read
Hockey Career Games Compared: Play the Shifts, Make the Calls or Draft the Six
Three hockey games compared: Hockey Career Pro League Game (play the shifts), Hockey Career Sim 2027 (a career of decisions) and 84-0 Hockey Draft & GM Manager.
- Sports & GM3 min read
Hockey Career Pro League Game: A Guide to Playing Your Hockey Career
How Hockey Career Pro League Game works: single or team control on the ice, coach objectives and A to F shift grades, training, a 32-team league and its limits.
- Sports & GM3 min read
How a Test Match Ends in a Draw, and Why a Draw Is Not a Tie
Why five days of Test cricket can end with no winner: Law 16, the race between overs and wickets, declarations, the last hour, and how draws differ from ties.
- Anime & Creative4 min read
How Crafting Systems Work in Games: Recipes, Resources and Progression
How crafting systems work in games: recipes that combine resources, tool tiers that gate progress, durability, recipe discovery and the grind.
- Sports & GM3 min read
How Cricket Pitches Affect Play: Green Tops, Dust Bowls and the Toss
How the 22-yard strip shapes a match: green, flat and dry pitches, how surfaces wear over five days, what the Laws allow groundstaff to do, and ICC ratings.
- Sports & GM4 min read
How Cricket Scoring Works: Runs, Boundaries, Extras and the Scorecard
Every way to score in cricket under the 2026 Laws: runs, fours and sixes, wides, no balls, byes, leg byes, penalty runs and overthrows, with a worked over.
- Education3 min read
How Dividends Work: Declaration, Ex-Dividend and Payment Dates
How a company declares and pays a dividend, which date decides who receives it, why the share price often drops on the ex-date, and how stock dividends differ.
- Sports & GM3 min read
How the NFL Draft Works: Eligibility, Seven Rounds and the Clock
How the NFL draft works: who is eligible, the three-day, seven-round format, time limits per pick, compensatory picks, trading picks and what happens after.
- Sports & GM3 min read
How DRS Works in Cricket: Reviews, Technology and Umpire's Call
The ICC's October 2026 DRS rules: who can review, the 15-second limit, reviews per innings in each format, the technology used and when umpire's call applies.
- Sports & GM3 min read
How Long Does a Cricket Match Last? Tests, ODIs and T20s in Hours
How long cricket matches last under the ICC's October 2026 rules: six-hour Test days, 7.5-hour ODIs, three-hour T20Is, and what shortens or stretches them.
- Sports & GM3 min read
How Long Is a Hockey Shift? What the Research Says, and Why Shifts Are So Short
Hockey shifts usually last about 30 to 80 seconds, adding up to 15 to 25 minutes a game. What studies measured, why shifts are short, and line changes.