See related story: Author Probes Sex-Obsessed Scientists in Bonk

Source: pharyngula.org

Source: U.S. Patent and Trademark Office

Source: Royaltyguide.nl

It's fairly easy to figure out if a man is turned on, but researchers need to make specific measurements. Enter the Rigi-Scan-Plus Rigidity Assessment System, which measures penile rigidity and can be used to study whether impotent men have nighttime erections. Sorry, Mac people: It's Windows-based.

Source:
Bonk: The Curious Coupling of Science and Sex
Source: itcdobrasil.com.br

British Medical Journal

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