Mathematics
Vectors — Essence of linear algebra
A visual introduction to vectors and the ideas behind linear algebra.
3Blue1Brown
Learning without the rabbit hole.
Use YouTube for the lesson you chose—not the feed that appears around it.
Add NoDopa to Chrome
A queue with a reason to exist.
Save the videos you mean to watch, put them in order, and return without starting from an algorithmic homepage.
- 01
Save the lesson
Paste a public YouTube link into your Learning queue.
- 02
Choose your focus
Open a saved video from the task you already decided matters.
- 03
Keep the noise out
Use NoDopa’s YouTube controls to hide feeds, Shorts, autoplay, and recommendations.
Three lessons worth your attention.
When your queue is empty, NoDopa now offers a small, credible starting set. Each lesson stays optional and saves through the same queue you control.
Computer science
Harvard CS50 — Full university course
A substantial first course in computer science in one place.
Harvard CS50 · freeCodeCamp.org
Study skills
Taking Notes — Study Skills #1
Practical guidance for making notes you can actually use.
CrashCourse
You decide what disappears.
Learning mode is not a separate, locked-down internet. It uses the same protection controls you choose for everyday browsing.
