korean learningLearn Korean, Part 7: Survival Phrases, Ordering, Directions
From gesture-show to conversation — greetings, ordering with 주세요, prices and sizes, directions, and the politeness endings that make it all work.
4 min read
Blog
Page 6 of 17 · 152 articles
korean learning
korean learningLearn Korean, Part 6: Time, Dates, and the Days of the Week
Time mixes both systems: native for the hour (시), Sino for minutes (분). Plus months, the seven 요일, the today/yesterday/tomorrow family, and particle 에.
4 min read
tradingLearn Trading, Part 7: Options Basics — Calls, Puts, Risk
Calls and puts, strike price, premium, expiration, intrinsic vs time value — how option payoffs work, and why naked premium is a slow leak for most.
4 min read
tradingLearn Trading, Part 8: Position Sizing and the Risk Model
The question is never 'how much do I win' but 'how much do I lose per trade.' Fixed-fractional sizing, the 1% rule, survival through losing streaks.
4 min read
side incomePrint on Demand for Beginners: The Real Math Before Your First Design
What POD actually costs per item, realistic margins after fees and shipping, and why the design and niche matter more than your storefront.
4 min read
mobile devReact Native Push Notifications: The Architecture to Ship
Local vs remote push in React Native — how the payload flows, why push isn't a background worker, permission wrangling, and patterns users won't mute.
5 min read
side incomeSide Hustle Time Management: Building a Business in 10 Hours a Week
How to batch, prioritize, and automate a side business without burning out — a realistic weekly operating rhythm plus the rules that keep it sustainable.
4 min read
tradingThe Trading Journal: Why You're Stuck Until You Start One
What to record after every trade, how to review a week of trades in 15 minutes, and the metrics that actually show whether you're improving.
4 min read
securityTwo-Factor Authentication: A Practical Setup Guide for Everyone
The highest-ROI account security control — what factor types really are, how session-theft math changes, and setup checklists for users and developers.
4 min read