Atomic Water Vase
Defying all laws of nature. Fill a small aluminum vase with water, cover it with a card and turn it upside down.
Hold the card and the water won't flow out. Remove the card, the water still won't come out!
The card is put back over the opening and the vase is turned upside down.
The card is removed and the water flows out.
Easy to do!
Beautiful aluminum version! English instructions.