Sulci are one of three parts of the cerebral cortex, the others being the gyri and the fissures. The three different parts create a larger surface area for the human brain and other mammalian brains.tructure [edit]. Sulci are one of three parts of the cerebral cortex, the others being the gyri and the fissures. The three different parts create a larger surface area for the human brain and other mammalian brains. When looking at the human brain, two-thirds of the surface is hidden in the grooves.
TIME crunches the merry numbers behind the most popular Christmas songs of the modern era. The names Joseph Mohr and Franz Xaver Gruber have largely vanished into the annals of Christmas tormentors, but their greatest triumph lives on.
For years, it's been debated who is the best-selling female artist of all time. From Mariah Carey to CÃ©line Dion, it's not often the one who holds the record is put into those debates. Guinness World Records frequently updates and has declared Madonna the best-selling female artist of all time.