Emily Kwong

He also ran computer simulations to see how ice freezes or melts, really looking at what happens to that surface.

And this is interesting because some past theories thought that maybe the pressure from like, let's say, an ice skate may be the thing creating that layer of water on the ice.

And he says it's always there down to negative 10 degrees Celsius.

And Luis's computer models also took into account humidity and found that humidity levels can also affect the formation and thickness of that water layer.

Looking ahead to the Winter Olympics in Italy, there's already been some concern about the ice rinks and whether the ice is smooth enough to skate on.

And according to Luis's work, if the humidity isn't quite right...

that could also affect the slipperiness.

This is inspired by the psychology of disgust.

So disgust is really important to our survival as humans because it helps us avoid all kinds of substances that would otherwise make us like sick.

Remember, disgust was one of the five basic emotions in that movie Inside Out.

Yeah.

Especially if you're a parent, which I am, and scientists at the University of Bristol and Whitman College wanted to know, how long do parents hold on to their tolerance for these gross things?

By tracking the volunteers' attention as they looked at these photos, his team found out that the non-parents tend to avoid the discussing photos, whereas the parents showed little to no avoidance.

They would look at those pictures of soiled diapers with little aversion, including parents who hadn't changed a dirty diaper in decades, which is like similar to me.

I am not bothered.

Maybe.

Yeah, I mean, discuss habituation is actually a good thing in all kinds of jobs.

Think about nurses or surgeons or custodians.

Edwin would love to see his work be used in those professions.

But you, Elsa, are always welcome and not annoying us.