When the sun shines after it snows, the white ground reflects sunlight onto your skin, increasing your exposure to the sun’s rays. This makes your body produce more vitamin D than normal, making you feel better.
I have a new video on the solution to a previous video! This one is better:
Can a linear transformation from 2D to 3D be onto? The Solution.
youtu.be/UFdb4Fske-I
Check out my very first video I made inspired by a question a student asked me while teaching linear algebra:
Can a linear transformation from 2D to 3D be onto?
youtu.be/1ML2s_pWlok
12K Followers 500 FollowingProfessor @MITEECS and @MIT_CSAIL. Complexity, algorithms, and related math. I'll let you know when P != NP (and when it's not)
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191K Followers 226 FollowingAuthor of The Fault in Our Stars and The Anthropocene Reviewed. Part-owner and longtime sponsor of AFC Wimbledon. Biz: [email protected]