January 9, 2019

What mysteries remain about the brain?

The brain remains largely a mystery.  We know it is made up of about 100 billion nerve cells, called neurons, connected like wires in a giant […]
January 9, 2019

From which our tongue is imprinted?

Like a fingerprint, the tongue has its own shape and texture, and its tiny bumps and ridges are distributed in a way that is uniquely yours. […]
January 9, 2019

What is the power of ten?

Our decimal number system – which is based on the numbers one through ten – was inspired by the ten fingers (and toes) of your ancestors. […]
January 9, 2019

Why are germs bad for us?

These microorganisms hitch a ride into our bodies on the food we eat, in the air we breathe, or through a variety of other methods. Once […]