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 […]
January 9, 2019

How do we get sick from viruses?

Most viruses are frail little things (unlike bacteria and fungi, viruses aren’t even alive) that can multiply only inside a living host (including animals, plants, and […]
January 9, 2019

How do we get sick from fungi?

Fungi are microscopic molds, yeasts, and other plantlike pathogens that thrive in wet, warm places like our armpits, our belly buttons, and the dank spaces between […]