of us. let me put your ihead on here. is it upside down, jonathan? >> nope. >> jimmy: alright, good. ready? [ click and flash ] there you go. thank you jonathon. i like it.e, anne. >> hi. ann, what's your last name? >> my last name is macazinski. >> jimmy: macazinski, and where are you from? >> i'm from british colombia, canada. >> jimmy: hey, cool. [ cheers ] we love canada. how old are you? >> i'm 16-years-old. >> jimmy: 16-years-old and what did you come up with? this looks very cool. >> i made a flashlight that runs on the heat of the human hand. [ audience oohs ] >> jimmy: this is what i'm talking about! i mean, ihead's one thing, but this guy -- now what do you mean it runs on the heat of your hand? >> well i use tiles on my flashlight and by heating one side and cooling the other side with ambient air, you can see it's a hollow tube. it produces electricity. [ cheers and applause ] >> jimmy: let me see this thing. can we turn the lights out and see if this thing works? ooh. spooky. [ laughter ] wow! that's crazy. [ cheers and applause ] >> jimmy: alright. good. i'm getting scared. i'm getting scared. bring the lights back up. how did you come up w