If the Earth were a flat surface and the Sun moved overhead and you traced shadows over the course of a year, the shadow's ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

This engineering exam, which is a gateway to some of the premium engineering colleges such as IITs, NITs and more, cover ...

Velocity rules in October. There have been a record 255 pitches of 100 mph or faster this postseason, up from 105 last year ...

Consider the rotor of a gyroscope. The rotor is attached to a frame that is rotating about a fixed vertical axes with a constant rate of ω 1, and with the rotor rotating relative to that frame at a ...

Deep in the core of most galaxies, hidden by spinning clouds of gas and dust, black holes spin like cosmic engines. These giants — some are billions of times heavier than our sun — can shoot out ...

Abstract: This study is dedicated to address the predefined-time attitude tracking control problem of spacecraft in the presence of actuator fault, unmeasurable angular velocity, system uncertainties, ...

Abstract: In this paper, a fault-tolerant control scheme is proposed for the rigid spacecraft attitude control system subject to external disturbances, multiple system uncertainties, and actuator ...