Autonomous electric vehicle for urban master-lay is born in pain. The searches are in many countries and firms, and individual enthusiasts, yet Balk at the same impasse: power, drive. Design created by analogy with the used in production areas, being “dragged” on the streets, reminiscent of a fish out of water — they also “choke” from lack of electricity, the power required speed. Because the developers have to deal with existing types of batteries, the energy intensity which does not allow to use electric motors, similar in power to the internal combustion engines. Hence, not the same acceleration and ground speed, and the range obtained is very far from desirable.
Read more
Numerous experiments to create a map with the electric drive until now led to the emergence of machines, its high-speed qualities can become a training, not racing. After analyzing design flaws, we tried to create electrocat (Fig. 1). able to become a competitor to the traditional internal combustion engine.
The beauty of this glider, named “Tetra” (because of the shape of its frame), is that it is collapsible and place of training it is possible to carry in a bag or backpack. It weighs more than 20 kg. Frame glider — tetrahedron, assembled on bolts of duralumin or steel tubes. The mast compound, its elements represent segments of dural pipes with outer Ø 40 mm, stacked with pipe sections of smaller diameter. The lower part of the mast is integral with the frame Buer from the pipe Ø 50 mm.
Folding bike nowadays. However, its dimensions even when folded, not too small, and to keep it at home and even more to transport on the bus or tram is not always convenient. I set a goal to develop a convenient folding bike smallest possible folded size. I wanted it to be easily transformed into a suitcase size with the usual “diplomat”. I have to say, this was not achieved, but to construct a two-wheeled machine, which, after transformation to fit in a suitcase or bag with the size 650x450x150 mm, I still did.
This boat has always caused the attention of vodnomotornikov. Some were attracted to him emphasized the car appearance, painted on the sides of the wheels. Other interior comfort, decent speed, maneuverability and controllability. Well, hobbyists and tinkerers, in addition, was interested in the construction and manufacturing technology of the body, could not be better focused on work in the home workshop.
For successful fishing it would be nice to to good gear added luck, but still; as they say, “gotta know”. And if luck is fickle thing, then the place where the fish, I knew. But to get to them sometimes was difficult, and “equestrian”, and even Hiking. and there was only one way — by water. However, this would have at least some boats. So I decided to make a simple fishing boat.
A simple actuator that turns ordinary wheelchairs into self-propelled designed for small business “Electric” engineer A. COHOM. The device is simple enough; to make it even in the apartment, without the use of special tools and materials. As the base used, the most common and reliable wheelchair wheelchair model “400” production of Stavrovskiy plant, although you can upgrade so any.
As soon as the first snow fell, it became clear that the house has no need of such cargo winter vehicle as a sled. Child’s sled for a long time “went” on a well-deserved rest in a pile of scrap metal, and weak they would have to carry the heavy loads.
The voice of the motorcycle or moped is familiar to everyone: a sharp and often as machine-gun fire, the crackle of a motor rips the silence, causing the others to flinch. And harmful effects of the exhausts themselves! With the growing number of these machines increases the degree of poisoning of the atmosphere by exhaust gases. 
Imagine you are in class technical schools. Class is in session. Lecturer for the Department sets the course, and the students, as expected, sitting at desks and listening attentively. But here ends the theoretical part, and is unusual in that the teacher, instead of inviting listeners to go to the shop or the lab, asking them to stand in the aisles. Then presses the button on the remote, and the tables as the team descends to the level of the seats. Revved the motor… and rows of tables slowly go under the chair! Fifteen minutes — and the room is free for practice sessions.