Air umbrella is a real“invisible umbrella”, which uses jets of air to create an invisible canopy over the user. Watch the video of it in action. The Air Umbrella weights roughly 850 grams and is equipped with a battery that can power it for around 30 minutes and it is currently up for funding on Kickstarter. "Air is everywhere on the earth. The flowing air can change the moving path of the object. The faster the air moves, the greater the energy is. The jet airflow can isolate some objects. So when we make use of the airflow, we can protect ourselves from the rain drops. Then the airflow forms an umbrella without a visible cover. "