For the Maya, solar eclipses were a sign of heavenly clashes − and their astronomers kept sophisticated records to predict them
For the ancient Maya civilization in Mexico and Central America, solar eclipses were viewed as signs of clashes between the gods and omens of possible destruction. The Maya were skilled astronomers who kept detailed records of the movements of the sun, moon, and stars using advanced calendars and mathematics. They could predict solar eclipses based […]
A century after the EEG was discovered, it remains a crucial tool for understanding the brain
The electroencephalogram (EEG), which measures electrical activity in the brain, was discovered 100 years ago by German psychiatrist Hans Berger. He was the first to observe rhythmic electrical activity coming from the human scalp. It took some time for the scientific community to accept Berger’s discovery, but EEG eventually became established as a tool for […]