YouTube is a free university.
But there are more than 38,000,000 channels there and it's hard to find the good ones.
Here are 10 channels that will make you smarter:
1/ Kurzgesagt (@Kurz_Gesagt)
Animation videos explaining things with optimistic
2/ CrashCourse (@TheCrashCourse)
Short courses on a wide variety of subjects, including organic chemistry, literature, world history, biology, philosophy, theater,
3/ Veritasium (@veritasium)
An element of truth - videos about science, education, and anything else
4/ Practical Engineering (@HillhouseGrady)
All about infrastructure and the human-made world around