Ulf Danielsson, professor in Theoretical Physics, Uppsala university
General relativity for dummies
The force of gravity does not exist, and the speed of light is always the same – these are the core assumptions of general relativity. In this lecture dramatic predictions, such as the connection between gravity and the slowing down of time, gravitational waves and the way the universe evolves, will be explained without fancy mathematics.
Bengt Gustafsson, professor emeritus in Astronomy Uppsala university
Black holes - at least 100 years old. But do they really exist?
The black holes, regions in space time where all travels inevitably end and from which no light can escape, may seem absurd. Moreover, theydemonstrate serious conflicts between the most important physical theories from last century. But do these holes really exist? And, if not, what does lurk in the Centre of the Milky Way?
Karl Grandin, professor in History of Science, The Royal Swedish Academy of Science
Checkmate! How Einstein got his Nobel Prize
The Nobel Prize is generally considered the ultimate recognition in science, and Einstein is generally considered the epitome of a scientist genius, so that he got a Nobel Prize may not come as a surprise. Still the story about his Nobel Prize holds several aspects of the operation of the Nobel system and how it dealt with his theories of relativity.