Air umbrella produces a "force field" of air to keep you dry

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A team of Chinese researchers have invented an umbrella that uses a field air to stop the water.This uses a lithium battery that powers a motor and a fan that diverts the water using airflow that arrive until to the tip. The umbrella can shelter two persons or even more.

The team designed three models of umbrellas. Each larger than the last and with more battery.

Personally, I think it isn't a wise idea, because who want to buy an umbrella that can be finished the battery, seems quite uncomfortable to bring and surely the price will be higher than normal.

Furthermore, is only one umbrella, is not very important for the society that this will evolved technologically.