For more recreational math, I tend to watch Numberphile: https://www.youtube.com/user/numberphile https://www.youtube.com/user/numberphile There's also a more-

For more recreational math, I tend to watch Numberphile: https://www.youtube.com/user/numberphile https://www.youtube.com/user/numberphile There's also a more-recently launched Computerphile, which has some interesting vids, as well: https://www.youtube.com/user/Computerphile https://www.youtube.com/user/Computerphile