Sports & GM3 min read
Types of Spin Bowling: Leg Breaks, Googlies, Doosras and More
The four types of spinner and their variations: leg break, googly, top spinner, flipper and slider; off break, arm ball and doosra; and how they deceive.
Page 12 of 42
All articles, page 12
Articles 265–288 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
Stars and Bars: Counting Combinations with Repetition
How the stars and bars method counts ways to share identical items among distinct groups, with and without minimums, and why the formula is C(k + n − 1, n − 1).
- Education5 min read
Stock Buybacks: How Repurchases Work and What They Change
A buyback is a company purchasing its own shares. Methods, the effect on earnings per share, the SEC Rule 10b-18 safe harbor and the 1% US excise tax.
- Education4 min read
Stock Market Hours, Pre-Market and After-Hours Trading Explained
US stock market hours are 9:30 a.m. to 4:00 p.m. Eastern. What pre-market, after-hours and overnight sessions are, and why trading in them carries extra risk.
- Education3 min read
Stock Splits and Reverse Splits: Why the Price Changes but Your Stake Does Not
A stock split multiplies shares and divides the price; a reverse split does the opposite. Why neither changes what you own, and why companies do them.
- Education3 min read
Stocks vs Bonds: Ownership vs Lending, and How Their Risks Differ
A stock is a share of ownership; a bond is a loan to an issuer. How each pays you, who is paid first in a bankruptcy, interest rate risk and how they combine.
- Utilities4 min read
How to Stop Apps Using Mobile Data on Android
How to stop apps using mobile data on Android: checking per-app usage, Data Saver, unrestricted exceptions, data warnings and limits, and Wi-Fi-only habits.
- Education4 min read
Stop Orders vs Stop-Limit Orders: What Happens When the Price Gaps
A stop order turns into a market order at the stop price; a stop-limit turns into a limit order. How each behaves in a fast or gapping market, with examples.
- Education5 min read
Strong Induction vs Ordinary Induction: When You Need More Than One Step Back
Strong induction assumes every earlier case, not just the last. When you need it, why it is valid, and worked proofs with stamps, primes and Fibonacci numbers.
- Sports & GM4 min read
Super Over Rules: How Tied ODIs and T20Is Are Decided
The ICC's October 2026 Super Over procedure: six balls, two wickets, who bats first, reviews and the ball, repeat Super Overs, and the end of count-back.
- Education4 min read
Support and Resistance: Price Levels, Hindsight and Why They Fail
Support and resistance are price levels where falling or rising prices have tended to stall. How chart readers draw them, role reversal, and why levels break.
- Education4 min read
Tautology, Contradiction or Contingency? How to Tell in One Truth Table
A tautology is always true, a contradiction always false and a contingency depends on its parts. How to classify any statement, with worked truth tables.
- Education4 min read
Technical vs Fundamental Analysis: Two Questions About One Stock
Fundamental analysis asks what a business is worth; technical analysis studies price and volume. How each works, what each assumes, and where each falls short.
- Languages4 min read
Thai Classifiers: Khon, Tua, An and How Counting Works
Thai classifiers explained: the noun, number, classifier order, common classifiers for people, animals, books and vehicles, and asking how many with kii.
- Languages4 min read
Thai Consonant Classes: High, Mid and Low, and How They Set the Tone
Thai consonant classes in one reference: the 9 mid, 11 high and 24 low letters, the seven sound pairs, the single low letters and the silent leading ห.
- Languages3 min read
Thai Greetings: Sawasdee, the Wai and What to Say When
Thai greetings explained: sawatdi with khrap or kha, how are you, thank you and goodbye, using khun with names, and when and how to return a wai.
- Languages3 min read
Thai Numbers: Counting, Thai Digits and Prices
Thai numbers from 0 to a million: the Thai digits ๐ to ๙, when one becomes et and two becomes yi, building big numbers, and reading prices in baht.
- Languages3 min read
Khrap and Kha: How Thai Polite Particles Work
Khrap and kha explained: which one you say, the high-tone kha for questions, where particles go in a sentence, and the friendlier na, cha and si.
- Languages3 min read
Thai Vowels: Long and Short, and Where They Sit Around a Consonant
Thai vowels explained: the 32 traditional vowels, nine short and long pairs, signs before, above, below and around the consonant, and hidden vowels.
- Education4 min read
The 1918 Influenza Pandemic: Spread, Deaths and Uncertain Numbers
The 1918 flu pandemic: an H1N1 virus that infected about 500 million people, its waves, and why death estimates run from 17 million to over 100 million.
- Education5 min read
The Age of Exploration: Routes, Motives and Consequences
The Age of Exploration in sequence: Portugal's route round Africa, Columbus, Tordesillas and Magellan — plus what drove the voyages and who paid for them.
- Education5 min read
The Aztec Empire: Tenochtitlan, Tribute and the Spanish Conquest
The Aztec Empire was a Triple Alliance of three city-states ruling central Mexico from 1428 to 1521. How it rose, how tribute worked and how it fell.
- Education5 min read
The Boxer Rebellion: The Siege of the Legations and Its Aftermath
The Boxer movement of 1899–1901: why it rose in Shandong, the 55-day siege of Beijing's legations, the Eight-Nation Alliance, and the 1901 Boxer Protocol.
- Education4 min read
The Cold War Explained: A Timeline From 1945 to 1991
The Cold War from 1945 to 1991: containment, the Iron Curtain, the blocs, proxy wars, the nuclear arms race, détente and why it ended twice — in 1989 and 1991.