0:00:00.139,0:00:04.204 So if you're like me you probably don't carry around a protractor everywhere you go 0:00:04.204,0:00:08.609 and even if you do, you sometimes you want to have only the angles you want, because you needed a whole bunch 0:00:08.609,0:00:14.248 without all those other degrees getting in the way. This is the need that the Angle-A-Tron fufills. 0:00:14.248,0:00:19.987 A protractor is kinda like a 180 degree Angle-A-Tron. It's great at 180 degrees. 0:00:19.987,0:00:23.359 You can make your own 180 degree Angle-A-Tron super easily from any piece of paper. 0:00:23.359,0:00:27.294 Even if your paper doesn't have an edge, you can just fold it and ta-da Angle-A-Tron! 0:00:27.294,0:00:31.602 One extremely useful Angle-A-Tron is the 90 degree Angle-A-Tron. 0:00:31.602,0:00:34.935 Many pieces of paper come pre-equipped with one of these, 0:00:34.935,0:00:39.039 but, if they dont, you can get one by folding a 180 degree Angle-A-Tron in half. 0:00:39.039,0:00:42.543 Now, you can draw all sorts of "rectangley things" and "perpendicularites". 0:00:42.543,0:00:47.180 Following the "fold stuff in half" method you can get a 45 degree Angle-A-Tron pretty easily, 0:00:47.180,0:00:51.552 or a 22.5 degrees, or a 11.25, and so on. 0:00:51.552,0:00:55.556 And you get these weird looking numbers, but that's only because we started with something 0:00:55.556,0:00:58.692 arbitrary, like 360 degrees, when, really the numbers we are looking at 0:00:58.692,0:01:01.562 are a half, a fourth, an eighth, a sixteenth, 0:01:01.562,0:01:05.098 you know, one over two to the n. It's not hard to fold paper into thirds, either. 0:01:05.098,0:01:08.035 Might take a litte evening out, then BAM! 0:01:08.035,0:01:11.838 180 degrees turns into 60 degrees, good for making equilateral triangles. 0:01:11.838,0:01:15.709 Or put two together and get 120 degrees, a very common and useful angle. 0:01:15.709,0:01:18.912 For when, say, bubbles meet, If you're drawing bubbles. Or honeycombs, or something. 0:01:18.912,0:01:25.085 Then you can start adding them together, 135 degrees is easy, 90 degrees plus 45 degrees. 0:01:25.085,0:01:31.319 Now you can make puzzles for yourself. Say you make a 60 degree Angle-A-Tron, and a 135 degree Angle-A-Tron, 0:01:31.503,0:01:35.462 How do you make an Angle-A-Tron that completes the circle? 0:01:35.462,0:01:40.734 Or, if a friend gives you an Angle-A-Tron, can you make a Complementary, or supplementary, I forget which is which, 0:01:40.734,0:01:46.186 Angle-A-Tron? And then, let me know if this is going a little bit too far, maybe you can put an Angle-A-Tron on 0:01:46.186,0:01:51.655 your Angle-A-Tron. And now, I have a 60 degrees, and another 60 degrees, which comes over here, 0:01:51.655,0:01:56.416 to make another 60 degrees, and now I have an equilateral Triangle Polygon-A-Tron! 0:01:56.416,0:02:00.416 And just in case you thought that wasn't going to far, Why not make that a Polyhedron-A-Tron?