At first, you can understand this art has something trick. Yes, this heart is shaped by some defferent shaped gears. It means one gear action will connect to other gears. Just look it.
Secondary, you have to know this is paper art , not metals , plastics.
You will understand paper works easily by this video ( gear's cube )
Japanese super express train named Shinkansen run speeds of up to 300 km/h. There are many video Shinkansen passing on Youtube website. If you want to see this kind of scenes, you have to move suburban station. You can not see this scene at Tokyo, Nagoya, Shin Osaka, Kyoto stations, because most of trains completely stop in front of you!
Origami(from oru meaning "folding", and kami meaning "paper") is the ancient Japanese art of paper folding. The goal of this art is to create a representation of an object using geometric folds and crease patterns preferably without the use of gluing or cutting the paper,and using only one piece of paper (usually square or rectangular).
We can find many video files about Japanese Parking in youtube website. There are many automatic parking system to store many cars in narrow space. As you know, Japan is narrow island country, various type of automatic parking are exist. Most popular type are tower parking and it works like Ferris wheel. Unfortunatlly, the cars on the cabin can not enjoy landscapes, because tower parking has no