My classmate Megan Bruck Syal works on how to defend the Earth from incoming planetary debris. In this new video, she does a backyard experiment about how the porosity of the asteroid would affect the way a projectile impacts it.

I’ve set the video to start at about the 8:30 mark, where she talks about majoring in astrophysics and mathematics in college, and also emphasizes the importance of all of the other courses — literature, history philosophy — that are an essential part of a liberal arts education.

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