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Manning’s equation estimates average velocity and discharge in steady, uniform open-channel flow. The calculation requires the flow area, wetted perimeter, hydraulic radius, energy slope, and Manning roughness coefficient. The equation is useful for preliminary hydraulic checks, but its assumptions must be verified before the result is used for design. This article was technically reviewed on … Read more
Gold bar price calculator searches are popular because gold is quoted in several different units. Some people check the gold price per gram, others look at the gold price per kilo, and global markets usually quote gold in troy ounces. This can be confusing if you want to know how much a gold bar is … Read more
Hi, this is Kkoogongnam. Interest in krx stocks rises fast whenever global investors believe Korea may be “re-rated.” But many English articles stay abstract. This post is built so you can verify everything yourself using official pages from krx and its disclosure platform. 1) The Value-Up Program in simple terms Listed companies can voluntarily publish … Read more
Last updated: 2026-01-27 (KST) If you’re trying to book Sing Again 4 – Seoul, the confusing parts are usually the same: session selection, mobile ticket entry (QR), ID checks, and getting to Olympic Hall on time. This guide is a practical checklist you can follow right before the purchase and on the concert day. Always … Read more
Updated: Jan 6, 2026 (KST) If you searched “korean stock market” (or “south korea stock market / korea share market”), you probably want one of three things: (1) when it trades, (2) what KOSPI/KOSDAQ actually mean, or (3) where to verify official numbers fast. This guide is built to be a one-page hub you can … Read more
Hi, I’m Kkoogongnam. Today we’ll break down Darcy’s law in the simplest, most practical way — the way you actually use it in soil mechanics and groundwater flow. (vs seepage velocity) If you understand just three things, you can solve most seepage/flow-through-soil problems: 1) Bernoulli Equation → Total Head (Energy of Water) From fluid mechanics, … Read more
Many U.S. investors search for undervalued stocks and rely on fundamental ratios to screen potential buys. The price-to-sales ratio (PSR), price-to-earnings ratio (P/E) and price-to-book ratio (P/B) are among the most commonly used. This guide explains how each metric works, why PSR is especially useful for growth stocks and companies with negative earnings, and provides … Read more
If you want to learn Korean, the fastest way to make real progress is to start with Hangul (한글)—the Korean writing system—then build pronunciation and sentence patterns on top of it. This guide is built for busy beginners: clear steps, short drills, and a 7-day plan you can actually follow. The fastest path to learn … Read more
Hello. This is Kkoogongnam. Recently, not only Korea, but also India and other countries have been experiencing heavy rainfall. I hope everyone is safe. While watching the news, I thought about why landslides occur when it rains on civil engineering perspective. A landslide is a phenomenon in which soil moves down a slope, such as … Read more
Hello! This is Kkoogongnam. In our previous discussion, we briefly explored ground improvement methods for weak soils. (Please refer to the previous post for more details.) Today, we’ll enhance our understanding by providing concise explanations for each method. Before We Start: Understanding Clayey and Sandy Soils. 1. Clayey vs. Sandy Soils Accurate definitions can be … Read more
