 Welcome back to Kids Fun Science. My name is Ken. Today's experiment is the cell phone versus your eyes. As always, adult supervision is required. What you need for this experiment is a TV remote and a cell phone. Welcome back to Kids Fun Science. Today we're going to do an experiment on remote control. So you need to go grab your TV remote, DVD, any kind of remote that controls that device from a distance. And if you press the button, put it right there. I'm pressing the button. You're not going to see anything. So you're not going to see anything with your own eye. But when you use another phone or camera here, we get my camera going. And we set it up. I bring this over here so you can see. And then we put it up and bring that there. Now we should be able to see. You can see the light right there. A little hard here trying to get this to work. But you can see the light blinking as I press the remote. And you're able to see a signal that is going to your DVD or your TV. And so you're unable to see that with your own naked eye. But when you put it in with your camera, you're able to see that, which is pretty amazing. I found also that if I use the camera coming towards me, I was able to see it. But when I use the camera this way and I tried to do it, it doesn't work. It doesn't go on. So the front camera must have a little bit less capability and is able to pick up that infrared signal. Your remote control in your house for your TV has an infrared light that transmits whenever you're changing desires to a small detector. So it's switching on when your human eye can't see that. So as the remote flashes that signal, it's a little bit like Morris Code. So it's going to go on and off and it's going to each little device in your house speaks a little bit different language that prevents television to do strange things. Like turn it on, turn it off, change channels and send in those signals just like Morris Code. So it sends it off. So every model, if you're having a different Samsung to any other different device that you're doing, a different manufacturer speaks a different language to avoid unwanted chit chats between different appliances. So to successfully send these signals, your remote needs to direct line of sight that eliminates that LED to detect your gadget, right? So this has to be directly down to your remote to the TV so it can pick up that information. So it's pretty cool that you're able to see it with the camera, the front facing camera and to be able to do that. So I think it's pretty awesome. And you know, so the real question is how come we can see it with the camera but we can't see it through our eyes? So the human eyeball cannot see infrared light, no matter how hard you might try, squint or do whatever you need to do to see it. But your camera light detectors can, however, they're really sensitive to the infrared light. So the camera internal circuit sends that signal that detects and sees that liquid crystal, right? The LCD and then emits the visible light to your eyes and so you can see it through the camera. Pretty impressive. So when you get a chance, get down with this video. Remember to click thumbs up and to subscribe and grab your TV remote and start clicking. Thanks for watching.