 I think we should we're going to turn it over to our scientists friends Tim and Jeff. And if you know Super Science Saturday at all you will have probably seen the live version of this grand finale event before. We're going to turn it over to them for the final hurrah, if you will, and then we'll hope that everybody stays safe and happy out there and keep exploring in your world. The whole point of today and doing all this virtually is that you don't have to be in a lab to do science. Science is everywhere. And we've learned from all of you today that you are out there doing science in your homes and in your yards and in your schools and everywhere you go so please keep it up. Thanks, Tiffany. Jeff, are you with us? Hey, Tim, I'm with you. It's good to see you again x-ray infrared here to for the finale. Yep. So if you haven't been for to the science Saturday at the Mesa lab, you might not know it but we try to end with a bang, literally. And we assume our personas of infrared x-ray we had gosh over the years we've had, I think ultraviolet and visible light and the pirate meteorologist I don't know am I forgetting any Jeff. I'm sure we have there's been a bunch of us yeah. We have the full spectrum of wizards. Yes, we do yes we do. Well, I don't know should we just get to it you want to set it up for us what's about to happen. Yeah, okay, I'll give you a little dialogue here. What we're going to be doing here is blowing up some ping pong balls a whole bunch of them there are thousands and thousands of ping pong balls. And the energy that is created for this explosion comes from a phase change of nitrogen. Let's start off with liquid nitrogen was about minus 320 degrees Fahrenheit is really cold. And that's why nitrogen the air we see as a gas generally here on Earth but we cool it down to 320 degrees Fahrenheit and turn it into a liquid. Now, once it's a liquid here on earth at this normal earth temperature it wants to go back up to a gas. Nitrogen takes up 1000 times more space as a gas than it does as a liquid. Yeah, a lot more space it really expands when it goes from liquid to gas. That's frightening. It is very frightening and it creates a lot of energy there's a lot of energy here and so we fill a leader bottle about one third of the way high with liquid nitrogen and then we cap it. And as that liquid nitrogen goes from liquid to gas it expands and expands. And finally that leader bottle cannot hold the expansion anymore, and it gives away. And once that bottle breaks, it releases all the energy that liquid nitrogen as it goes to the stage change, and it is incredibly powerful it's amazing. And that's what a cup or two of liquid nitrogen can do. And so, since we are able to do it live today we don't have our chemistry would help pour the liquid nitrogen in. And then we all pour the ping pong balls in real quick. We can't do it live this year for for a variety of reasons obviously the pandemic is the main reason. And so we've got some nice videos of past years of the ping pong ball explosion going off in the at the end car mason lab. And so I hope you enjoy these videos. And I really hope you keep excited about science, science is fun. It's exciting. It's a great career I love working with sciences. And I've been able to do this as a wizard is just a cherry on top so keep excited about science. And I hope you enjoy these videos. Thanks Jeff and before I show them I just want to give a shout out to our backup or crew our bench goes deep with our safety people, the amazing honorary wizards Rita, Anna, Matt, Bob all of you thank you for helping us get this going and I don't know should we get it, should we show it. I think I think it's all about the show I think we can we can blast away to. All right, here we go everyone. Thanks y'all. What am I sharing am I sharing everybody.