Why does Sylva, a graduate student at Northwestern University, care so much about how gay people walk?

CNN: Step by step, researcher looks for sexuality clues

Sylva's observations focus on the physical characteristics of the individual's stride, such as the closeness of the knees.

CNN: Step by step, researcher looks for sexuality clues

Most recently, she has designed the Sylva Solar Food Dryer to sell to small-scale farmers who can use it to add value to their produce.

BBC: Zambian open window gave restaurant lift-off

David Sylva wants to know.

CNN: Step by step, researcher looks for sexuality clues