New devices to keep sexual predators away
By Wang Xu | China Daily | Updated: 2014-10-07 08:27
1. Nail polish to detect date rape drugs
Four students from North Carolina State University have invented a nail polish, dubbed "Undercover Colors", which purportedly changes shade when exposed to date rape drugs such as Rohypnol, GHB or Xanax - in theory, preventing potential unwanted sexual encounters.
2. Rape-resistant shorts
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