At 83, Marian C. Diamond has been teaching anatomy at the University of California, Berkeley, for 50 years. Her class is so popular that it’s difficult for students to get in, though she holds court at the campus’s largest lecture hall, with room for 736.
She begins by opening a colorful hatbox. Dressed in an elegant suit and scarf with her hair swept back into a chig non, Professor Diamond pulls on a pair of latex gloves and reveals the box’s contents: a human brain. It is in alcohol, she says, “because alcohol will preserve the brain. Need I say more?” The students laugh as they take this in. She has the room in the palm of her hands.
Professor Diamond is one of the tweedy celebrities of cyberspace. Videos of her anatomy course, Integrative Biology 131, have been viewed nearly 1.5 million times on YouTube, where they have been available since 2005 to anyone with an Internet connection. Some of the world’s foremost scholars are up there for viewing, tuition free. From Yale, you can tune into an economics class by a professor with his own home-price index, Robert Shiller, or a course by the Milton scholar John Rogers. The undisputed rock star academic is Walter H. G. Lewin of the Massachusetts Institute of Technology, who flies across the room to demonstrate that a pendulum swings no faster or slower when there is an added mass (Professor Lewin) hanging at the end.