Learn about the APPSC Forest Beat Officer Syllabus 2025, including subject-wise topics, exam pattern, preparation tips & more ...

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 ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

The Langlands program has inspired and befuddled mathematicians for more than 50 years. A major advance has now opened up new ...