5. RSA Animate
This channel may be a little highbrow, however the style of animating lectures is a clever way of making otherwise what could be dull topics quite entertaining.4. Computerphile

3. Numberphile
Numberphile is the sister channel to Computerphile. This time Brady Haran interviews mathematicians to get their explanation of such topics as "Connect Four", "The Scientific Way To Cut A Cake" and "Fibonacci Mystery".2. VSauce
