Tears: read it and weep

You are a parent. You have small children. You know about poo, dribble and tears.

Fascinating things, tears.

And a wonderful thing, the internet. When I grew up, our home was blessed with the presence of the expansive Everyman's Encyclopaedia (6 slim volumes, with Einstein's life, career, philanthropic work, and the theory of relativity, all in about 2 paragraphs). Herein lay the answer to all our family's questions.

Now it's Wikipedia. Where better could you hope to be schooled in the science of tears? Did you know there are 3 different kinds of tears, and that not all tears share the same chemical composition?

As a bonus, you'll love the picture with the caption, "A child producing tears due to emotional stress or pain." The picture says far more than the words.

One might also wonder what emotional stress or pain that particular child's parents just went through as well!