Postcard "headwind"

Text: "Ey headwind, you stupid pig!" This card has been specially and under complex calculations Made in the laboratory to face it - the headwind. Because is always there. A long-term study found that headwinds are reduced by around 0.78% * per trip, if you have this card with you. The card is 300g thick and was printed on 100% recycled paper. Have fun sending it! Size: DinA6 (105 x 148 mm)