So the mouse is 10 feet from the base of the lamp. And we also know, we have our little radar gun out, we know that this owl is driving straight down. And right now, it is going 20 feet per second. So right now, this is going down at 20 feet per second. Now, what we're curious about is we have the light over here. Light is coming from the street lamp in every direction. And it creates a shadow of the owl.