The invisible man returns - and he's harder to pick out than ever. Chinese artist Liu Bolin is back with more jaw-dropping work; Blends into fruit and veg stall, shelves of soft toys and bus stop ...

Google’s reCAPTCHA turns “invisible,” will separate bots from people without challenges Google says it can separate man from machine without any tricky tests or checkboxes.

In response to our post yesterday about the often-invisible background shading on ads in the search engine results, Derrick Connel, Corporate Vice ...