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Tagged articles

rocket equation

3 articles · Page 1 of 1
Model Perspective
Model Perspective
Jul 6, 2026 · Industry Insights

The Math Behind a Submarine-Launched Strategic Missile Test

The article analyzes the July 6 submarine-launched missile test by calculating its Keplerian trajectory, altitude over neighboring airspace, the rocket equation governing range, and the legal implications of crossing the Kármán line, revealing how physics and strategy intersect in such demonstrations.

Kármán linemissile trajectoryorbital mechanics
0 likes · 10 min read
The Math Behind a Submarine-Launched Strategic Missile Test
Liangxu Linux
Liangxu Linux
Jul 25, 2024 · Fundamentals

Uncovering a 55‑Year‑Old Bug in the Original Lunar Lander Game

A retired software engineer revisits the 1969 text‑based Lunar Lander game, exposing a decades‑old mathematical error that causes the simulation to misjudge soft landings, and explains the physics, numerical approximations, and optimal burn strategies behind the classic program.

Lunar LanderRetro GamingTaylor series
0 likes · 11 min read
Uncovering a 55‑Year‑Old Bug in the Original Lunar Lander Game
IT Services Circle
IT Services Circle
Jul 2, 2024 · Game Development

A 55‑Year‑Old Bug in the Original Lunar Lander Game: Missing Square‑Root Factor in the Rocket Equation

The article recounts the history of the 1969 text‑based Lunar Lander game, explains how its creator used the rocket equation and Taylor series for physics simulation, and reveals a long‑standing bug—a missing factor in the square‑root denominator—that causes the optimal fuel‑burn strategy to fail, prompting a modern analysis of the error.

Bug AnalysisGame HistoryLunar Lander
0 likes · 11 min read
A 55‑Year‑Old Bug in the Original Lunar Lander Game: Missing Square‑Root Factor in the Rocket Equation