Okay, it's your friend who puts all his sticky change in a water cooler jug to buy a jet ski one day.

Alliward, welcome back to Alligies. If you're there, I can't see you. But even if I could, could I?

Let's make sounds about sight. Shall we? Okay, invisibility, it's here. This Alligist wrote the book on it.

It's called invisibility, the history and science of how not to be seen.

How does one become such an expert they can write a book about invisibility?

Well, first you get an undergrad and a master's degree in physics and then a PhD from the University of Rochester in theoretical physics

and get stoked about the optics of all that we can and cannot see.

So this guest is a professor in the Department of Physics and Optical Science at the University of North Carolina in Charlotte

and has well over a hundred published scientific papers with titles such as Super Acelatory Behavior in Partially Coherent Fields.

How do we even go about covering this? How do I do this episode?

Will I even ask questions that make any sense? Let's see. I was so nervous to jump on this chat with him.

So let's see how I do. Okay, but first, thank you to all the new listeners who came from Radio Lab.

Hey, I loved being on the show last week. Thank you, Lulu, and a lot of for having me.

And if you wish that we had a kid friendly version without swears, we do. Don't worry, we do. They're called small Gs.

And they are linked in the show notes. You can go to oligies.com. There's a link right there for you.

Thank you, patrons who chip in a buck or more at patreon.com and submit questions for the oligists ahead of time.

And thanks to everyone who rates and subscribes and reviews, which really does put us up on the charts.

This week we were the number three podcast across all categories.

A lifetime record, just surreal. And I read all of your reviews and to prove it, thank you, Read Nes, who left the review this week.

I somehow just discovered this not at all hidden gem via Radio Lab. It's already my new favorite.

I can't wait to nag all my friends and family incessently about it. Thank you for doing that.

Also, ChibaPet, who left two stars because of language, I do have one word for you. And it's not four letters. It's small Gs.

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