Sihai network

A handle is enough on rainy days!

It's a common sense for many people to take an umbrella in rainy days, but have you ever tried an air umbrella? On rainy days, only one umbrella handle is needed to blow away all the rain around you, so as to form a rainless area. Such a great idea has been put into production, and it is believed that it will be realized soon. However, Xiaobian is worried about what to do if there is no electricity? And this umbrella battery can support up to 30 minutes, if you meet the heavy rain, it is estimated that you will have to go home!

recently, a magic 'air umbrella' has spread wildly on the Internet. The umbrella has no cover. It uses air flow to blow away the rain through the blowhole on the handle. Rumor also said that the designers are from Beijing University of Aeronautics and Astronautics and Nanjing University of Aeronautics and Astronautics team. Some netizens said that relying on the air to blow away the rain, what should people around do? On rainy days, holding a stick is drunk.

The secret of design principle

From the perspective of design concept, the design idea is very novel, but if we want to form a product, it is estimated that there are challenges, and we need to see the design parameters in detail. The aerodynamic force blowing out from the top of the handle is suitable for the size and mass of the raindrop, which means that a lot of gas is released every second.

Air umbrella-a is more suitable for women

The designers showed the basic information of several products on the website. Air umbrella-a is suitable for women. It's about 30cm in length and 500g in weight. It's not expandable, and the battery can last for 15 minutes. It's very light. Air umbrella-b, umbrella length 50 cm, weight about 800 grams, battery can use 30 minutes. So it's OK to experience and taste fresh food. From a practical point of view, it's still a little unreliable, and this umbrella blows the rain all around, which will bring inconvenience to the people around, so its practicability needs to be further improved!