Sunday links

Harry Potter stars attempt American accents.

How do you know what time it is? Cool post on your inner clock.

Did your student really write that essay? Confessions of a shadow scholar.

You may have read about a new study regarding gender bias in academic recommendation letters. The Monkey Cage takes a closer look.

Can you distinguish fake smiles from real ones? Find out. (I was no better than chance.)

YouTube pick: Robyn - Hang With Me