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, ...

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 ...

It can be dangerous to go without sleeping, even for a day. Longer-term sleep deprivation can cause cognitive impairment, hallucinations, and other side effects. The longest recorded time without ...

Visiting these Goodwills for the first time led to some surprising finds. Gorilla smashes glass at San Diego Zoo Hundreds of thousands of people told to stay inside in California “Can I meet Eric?”: ...

Natural selection uses duplicated genes as raw material for functional innovation, co-opting their existing features to new functions. Understanding genetic innovation requires two questions to be ...

Natalie Campisi is a senior journalist who covers personal finance, balancing timely news with in-depth enterprise reporting. Her mission is to make complex financial issues clear and accessible for ...

Aaron McKinley is a writer, blogger and video game enthusiast with over five years of experience in web content and many more in playing games until the wee hours of the morning. His work spans many ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. David Kindness is a Certified Public Accountant (CPA) and an expert in the fields of financial accounting, ...

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