According to a new study in the journal Brain, the left and right hemispheres of Albert Einstein's brain were unusually well connected, and this may have contributed to his brilliance. 

For the first time, scientists were able to get "inside" Einstein's brain, using a new technique that allowed them to detail Einstein's corpus callosum, "the brain's largest bundle of fibers that connects the two cerebral hemispheres and facilitates interhemispheric communication."

This technique may prove useful not only for learning more about Einstein, but for the future study of the brain's internal connectivity. 

Read more here