Consider: The hummingbird does not waste energy by sucking a flower’s nectar into its mouth. Rather, it takes advantage of the cohesive forces that cause water on a flat surface to bead up and defy gravity.
Šis putniņš izmanto virsmas spraigumu, kas ūdenim uz plakanas virsmas liek savilkties pilienos par spīti gravitācijas spēkam.