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Washington State University
College of Arts and Sciences Dr. Universe

Dr. Universe: If snakes smell with their tongues, what do they do with their noses?

Dr. Universe: a cat in a lab coatSnakes have an amazing sense of smell. They can use their tongues to pick up on all kinds of scents in the air.

Whenever we smell something in the air, we are actually sniffing tiny building blocks called molecules. These molecules are what make up the scents of everything around us—things like baked bread, fresh-cut grass, and warm cookies. » More …

Dr. Universe: How does stained glass get its colors?

Dr. Universe: a cat in a lab coatEver since humans discovered they could use sand to make glass, they’ve been experimenting with it. They even learned how to control the colors.

My friend Dustin Regul is a stained glass artist and painter who teaches fine arts at Washington State University. He told me more about where glass gets its color. » More …