Before starting a helicopter with two blades, its blades are held in place. When the helicopter's engine starts, the blades initially shake violently due to wind and vibrations, and if not controlled, an accident can occur. Therefore, crew members hold the blades and keep them steady so that the helicopter can fly safely.
The three-wheeled sports bike. This is the Yamaha Niken. One of the most unique bikes in the world, this bike has two front wheels and one rear wheel, which improves its road grip and balance, and it remains quite stable even on sharp turns. Therefore, it is considered safer and smoother to ride. It also boasts a powerful engine of approximately 847 cc.
Have you ever seen chains hanging from the wheels of large trucks?
Most people think this is just for decoration, but in reality, it serves a very important function. In fact, when the truck travels on roads with heavy stones and rocks, large stones can sometimes get caught between the wheels. These chains prevent these stones from getting stuck in the wheels and help the truck move safely.
Have you ever seen a flamethrower that spews real fire, but it doesn't burn things? This is actually a special kind of safety flame, made from gas and low-temperature fuel. It's used in films, stage shows, and by stunt performers to make it look menacing. However, it can also be dangerous when used up close.
Why is this strange thing inserted into the human body?
When a person's heart starts beating too slowly or irregularly, doctors implant a small pacemaker into their body. This machine helps the heart beat at the right pace by sending gentle electrical signals when needed. This small machine works continuously for years, saving millions of lives.
The most widely used rubber in the world is extracted by tapping. It's called natural rubber and is obtained exclusively from rubber trees, for which a small incision is made in the bark. After this, a white colored liquid comes out from it, which is called latex, and then this latex is processed in the factory, and tyres, shoes, gloves, and thousands of other things are made.
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