Tiny dandelion seeds have been known to waft up to 500 miles (800km) just using the power of the wind. Now scientists have found out their secret and say their super efficient mini parachutes could revolutionise designs for remote-controlled stealth drones. Never-before-seen air bubbles that surround the seeds on the yellow-flowered weed are believed to be the secret to one of'nature's best flyers'. Dandelion seeds are said to be four times more efficient than what is currently possible with man-made parachute designs. Tiny dandelion seeds have been known to waft up to 500 miles (800km) just using the power of the wind.