History of the Weekdays

By the third century the seven-day week had become common in private life throughout the Roman Empire. Each day was dedicated to one of the seven planets. Those seven, according to the current astronomy, included the sun and the moon, but not the earth. The order in which planets governed the days of the week was: sun, moon, Mars, Mercury, Jupiter, Venus, and Saturn. This order was not that of their then supposed distance from the earth, which was the "normal" order in which Dante, for exampl...

 The Baby's Brain is Interested in Surviving

Many well-meaning moms and dads think their child’s brain is interested in learning. That is not accurate. The brain is not interested in learning. The brain is interested in surviving. Every ability in our intellectual tool kit was engineered to escape extinction. Learning exists only to serve the requirements of this primal goal. It is a happy coincidence that our intellectual tools can do double duty in the classroom, conferring on us the ability to create spreadsheets and speak Fre...