In our latest intallment of #KuriousKiddos, Karson and Owen wanted to know: What makes our eyes red after swimming? Your first thought may be chlorine, but another culprit is to blame. Gross alert!

At the Council, we specialize in taking complex scientific and medical issues and crafting them into a form that can be understood by non-scientists, while at the same time not omitting crucial information. And talk about timing! We don't get a challenge like this every day. This one is special. Do people pee in the pool? How about bears? We shall see.

The world can be broken down into two broad categories:

1) Those who deny that they pee in the pool.

2) Those who won't go in the pool because they know that the people in group #1 are a bunch of liars.

Given these two facts, it is difficult to understand why anyone would want to study whether urine is found in pools, let alone how much. But, a...