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Articles 49–72 of 990, newest first. To read by subject instead, start from a category or a topic hub on the blog’s front page.
Why the integers and rationals are countable but the reals are not: listing arguments, Cantor's diagonal proof step by step, and what it means for computing.
Creative vs survival mode in block-building games: what each changes, where creative mode came from, peaceful and hardcore variants, and which to pick.
Why Tests use red balls, white-ball cricket uses white and day/night Tests use pink; how balls are made; the three makers; and the 2026 Size 1, 2 and 3 balls.
Law 5's cricket bat rules: 38-inch length, 4.25-inch width, depth and edge limits, the bat gauge, Types A to D, and the 2026 change on laminated bats.
The main cricket batting shots: front and back foot, straight-bat drives and glances, cross-bat cuts, pulls, hooks and sweeps, plus the switch hit.
How Cricket Sport Career Simulator works: creating a cricketer, the skill groups, match decisions and simulation, career goals and rivals, and its limits.
How cricket fielding positions are named, where slip, gully, point, cover and fine leg stand, attacking and defensive fields, and the Laws that limit them.
Test, ODI and T20 cricket compared under the ICC's October 2026 playing conditions: innings, overs, bowler limits, balls, results and how each changes tactics.
Cricket's milestones explained: fifties, centuries and double hundreds, century partnerships, five-wicket hauls, hat-tricks, maidens, and the duck.
Who does what in a cricket XI: openers, the middle order, the tail and nightwatchmen, strike bowlers, all-rounders, wicket-keepers and the captain.
Cricket from scratch under the 2026 Laws: 11-player sides, the 22-yard pitch, six-ball overs, runs and boundaries, how wickets fall and who wins.
The five core cricket statistics: batting average, batting strike rate, bowling average, economy rate and bowling strike rate, with worked calculations.
Every umpire signal in the 2026 Laws of Cricket, from out, four and six to bye, leg bye, short run and penalty runs, plus the ICC's free hit and review signals.
The Cuban Missile Crisis day by day: U-2 photographs, the 22 October quarantine, two Khrushchev letters, Black Saturday and the secret Turkey deal.
D-Day explained: why Normandy, the weather delay, the airborne drops and five beaches, what went wrong at Omaha, and how many died on 6 June 1944.
Daily planner vs to-do list: what each one answers, when each works best, why time estimates run short, and a simple way to combine the two each day.
De Morgan's laws say how to negate an and or an or: flip the connective and negate each part. Proofs by truth table and Venn diagram, plus uses in code.
A derangement is a permutation that leaves nothing in place. Count them with inclusion–exclusion, see why the odds approach 1/e, and use the recurrence.
How to do diaphragmatic or belly breathing, lying down or sitting, how often to practise, and what small studies have found about stress.
Dietary fibre explained: FDA's label definition, soluble versus insoluble fibre, the 28 g Daily Value, why low-carb trackers subtract it, and adding it slowly.
Dijkstra's algorithm finds shortest paths from one vertex. The table method step by step, recovering the route, and why negative weights break it.
The core of a first discrete math course in one reference: logic laws, proof methods, set identities, counting formulas, number theory and graph facts.
How to use Discrete Math: Study & Quiz unit by unit: what its ten units cover, which practice mode suits which job, and when to reach for the logic tools.
Diversification spreads money across investments so one loss hurts less. How it works, why it cannot remove market-wide risk, and where rebalancing fits.