State of the Knowledge

io9 is having an Ask a Physicist event. In first post anyone could ask any question that have been nurturing her or him to real life physicist Dr. Dave Goldberg. Now he answers those questions starting from the most common problems. In fact right now the questions he answers are the ones thatąs are always explained in every popular science physics book like the book he just published. Maybe more bizarre parts of physics will come later. I'm waiting for him to explain life, universe and everything.