There aren't many ways a smartphone can tell you that its screen is damaged. Of course, obvious cracks running across the screen are telltale pointers, but screens aren't made up of only glass. There ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Hinnerk ...

From colour-changing fire trucks to 'The Dress', many optical illusions have baffled the internet over the years. Now, a scientist from Harvard Medical School has discovered an illusion that might be ...