Hi, I'm Oscar van de Venter and what I'm showing to you here is the ultimate reduction, which has a gearing ratio of a billion to one. So I'll start with the demonstration. The gearing mechanism has a crank and the red ring turns, the yellow ring turns, so I keep turning and what you're seeing is a gearing ratio of a billion to one. Of course, a billion to one goes a bit too slow to show on the camera, but at least I can show you one stage at the back side where you see the blue gear moving all parts. And the way this gearing mechanism works is actually it uses the grinder gears. This is a mechanism that I've shown you before and you see when you make these turns, it's a sacroidal gear, it goes very slowly and then we have a differential. This one has 2060, this one has 27, so that gives you another reduction. I have a model here of what's at the inside of extreme reduction. Actually, it is three stages of a thousand to one. So here you see each stage, well let me take it apart for you. Okay, it's very few parts, but this little blue gear, it has, well when it's complete, it has 20, sorry, 32 teeth. So the first stage gives a reduction of 32 squared, which is a thousand to one approximately. So when you add three stages, you get ultimately a billion to one. And yeah, it's a proof of concept to show that you can have a very, very compact mechanism with a very, very high gearing ratio. My question to you is about the exact gearing ratio, I said that it's approximately a billion to one. And what's the exact gearing ratio? Thank you for watching.