Moody freelance science writer, David Bradley (aka sciencebase) famed for his depressive social media avatar and miserable lack of photogenicity, cracked the lens today when his daughter snapped a few photos of him pensively and pointlessly propped up against the headstock of his Fender Telecaster Guitar. In one of 27 headshots, Bradley is actually seen to be smiling at the camera. The photograph has now been quickly uploaded to the Gravatar servers, and used to replace his Twitter avatar and his Facebook profile photo before his mood changes. There were three seconds of absolute stunned silence across the whole of social media and in science laboratories the world over as a mark of respect. Frontpages have been held…