This Nail Varnish Can Tell If Your Drink Has Been Spiked

"Power must be handed back to women in what is a devastatingly powerless situation"Sexual assault is a widespread problem in American collages and in a bid to prevent girls from getting attacked, a group of male engineers from North Carolina State University have created a nail polish that changes colour if your drink has been spiked.
The four students first came up with the idea after a few of their friends were sexually assaulted and set out to create something that would help keep others safe