Footage of a tech vlogger pouring 30 bottles of nail varnish over an iPhone 7 to see if it survives. <br /><br />The video, filmed in California, USA earlier this week, shows Tech Rax performing the experiment, and after peeling the nail varnish off the phone, it still seems to work. <br /><br />However, he later offered some simple advice online: "Don't try this!"