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Tensegrity
(18) | 27/05/2020 | Translate: Prevalence is the ability of a structure to stabilize through the interaction of the forces of tension and compression that are distributed and balanced in it.. In this cardboard sculpture, all threads are in constant tension. The result is the impression that the sculpture is hovering.
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The strength of the current How electricity can melt metals. In this particular case, voltage is low (around 2 volts) but the volume too high (400 Amp).- A loop of string defying gravity The physics professor Bruce Yeany shows a small machine that rotates a loop of twine. The inertia of the twine make him suspended without being influenced by external forces.
- Electric eel lights up a Christmas tree An electric eel named Miguel, They are responsible for the lighting of the Christmas tree an aquarium in Tennessee. Although the tree did not actually powered by eel, a special mechanism that is connected to the tank translates the electrical discharges in the light intensity of the lights of the Christmas tree next to it. The Miguel generates low voltage power when trying to find food.
- A paper plane that never falls to the ground A child throws a dart and keep permanently in the air with the help of a flat piece of cardboard. This practice is called Walkalong Glider (walking along the glider). The principle is to keep the board behind the shuttle. The air is pushed by the board helps the shuttle hover.
- The magic magnetic spinner The gyroscopic magnetic levitation is a phenomenon, in which a magnet or magnet array hovers through magnetic forces over another magnet or magnet array, and fixated with the gyroscopic effect due to rotational movement. Here you can see that made a simple game with a spinner, that demonstrates this phenomenon.
- The terrifying experience of a lucky driver The driver of a van in Russia attempts to pass through a gate with an entry bar, whose tip is very pointed. The driver accelerates the vehicle and as he passes the entrance, the bar impales the windshield and slams into the driver's seat. Fortunately the man escaped with a minor hand injury.
- Drone that automatically charges from power cables Students at SDU University in Denmark, presented a fully autonomous self-recharging system for a drone capable of long-term continuous operation near power lines. The drone is equipped with a built-in navigation system that allows it to locate power lines and approach them. A gripper mechanism grips the power line cable, and a control circuit provides the holding force as well as recharging the battery.
- Demonstrating a durable screen At a technology fair, a seller presents a "durable" screen to a visitor, prompting him to hit her hard.
- Elephant lifts tourist bus into the air In the Pilanesberg Game Reserve in South Africa, a male elephant attacked a tourist bus. The guide had chosen to take the tourists to the Rathlog Bird Sanctuary. The tourists had exited the vehicle and were in the parking lot when the tour guide noticed a male elephant heading towards the bus. He then asked his passengers to return to the bus. 4 people managed to get back into the vehicle and another 15 managed to hide in the parking lot. To protect visitors, the driver tried to drive the elephant away by making noise and shouting. But this had the opposite effect and the elephant attacked the vehicle, lifting it twice into the air and letting it fall hard to the ground. During the breeding season, male elephants reach testosterone levels several times higher than normal. They exhibit aggressive behavior and a thick, tar-like secretion called frontalis, emerges from their temporal openings.
- Ice city ride The Harbin Ice and Snow Sculpture Festival is an annual event held in the city of Harbin, China since 1963. Harbin, it is the capital of Heilongjiang province and has a very cold climate in winter. The average temperature in January is -16,8 °C but can reach as low as -38,1 °C often. So, the population has developed a culture closely associated with snow and ice. The festival starts on January 5th and lasts for at least a month. The ice sculptures contain the traditional themes of Chinese folklore, such as traffic lights, up to more modern scenes that incorporate lasers. They are located in various parks in the city where guided tours are organized.
- Swallowfishes and their predators The swallow fishes, are fish of the Exocoetidae family that have developed fins on their gills, which give them the possibility to be ejected and suspended over the water several meters. This ability of theirs can make them more agile, but at the same time makes them vulnerable above and below the surface of the water - since above they are chased by the frigate birds (Frigate), and from below fish hunters (Coryphaena hippurus). Excerpt from the documentary "The Hunt" by BBC.
- Traditional washing machine that works with the power of the river The traditional mechanism "whirlpools" about washing clothes under running water from a river in Romania.
- The Solar System if the Sun suddenly disappears Digital representation of gravitational forces, without the Sun's gravitational pull on the Solar System.
- Shooting range, carved on a rock In Japan, someone places some volleys in a special path carved into a rock. A sculpture created by Tsubota rock shop.
- Ducks vs waterfall In a lake, a duck makes the mistake of bringing her 9 ducklings too close to a waterfall. When the duck realizes its mistake, she immediately turns around and swims with all her might. Ducklings do the same, but they will have to fight against the strong current. Fortunately, everyone escaped the danger.
carafe!!!!! :P
eisai vlima