>> farmer derrick with what he calls cowart.s decided that he's going to create the olympic rings using his cow, a little hay -- >> and his drone to show us how it works. open the gate and whoo! >> go, cows, go! >> the circles forming. >> they start to make their way around the other bales as well. >> like ants. a little ant hill. >> now you've got a problem. >> i don't see too many rings. >> he says there's too many me .red together. come on we can do this. i'm excited. we're getting close, getting close. >> there it is! olympic cow rings, whoo! yeah! >> if there was an olympic sport for being a farmer, this dude would win it. >> yeah, because he's amped. watching it all on this camera, the battery's almost dead, but he did it. >>> lost. driving in the forest. when this navigator cat shows up. >> this way, everybody! get out of my forest! >> would you actually follow it? >> see what happens when they did, next. >>> they're testing small jet engines for their iron man plans. is it safe? >> oh, like indiana jones! >> see the test