Category: QuestionsPage 2 of 3

Why Do We Sleep?

An average human sleeps for a third of his or her life (1). Other animals can display great variation in their time spent sleeping, ranging from the koala…

What Causes Ice to be Slippery?

Chemists and physicists have heavily debated the seemingly simple question of why ice is slippery. Intuition tells us that liquids are mobile and that their presence reduces friction…

What is Synesthesia?

Synesthesia, a rare neurological condition, describes an involuntary, automatic union of the senses or secondary experience caused by an external stimulus. The word “synesthesia” comes from the Greek…

Why Do Our Fingers Get Wrinkled?

At one time or another, most of us have experienced “pruney” fingers, or the exaggerated wrinkling of fingers and toes that results from prolonged exposure to water. Until…

Is Our Collective IQ Increasing?

The Flynn Effect is the observation that intelligence quotient (IQ) test scores have, on average, increased significantly from the 1930s to the present day. IQ tests are intended…