Cecetătorii francezi au descoperit secretul picăturilor de ploaie: acestea nu se sparg la impactul cu solul, ci înainte să atingă pământul.
O echipă de cercetători francezi a descoperit cum picăturile de ploaie se sparg înainte de a atinge vreun corp solid şi au publicat studiul în ultimul număr al revistei „Nature Physics”. Aceşti au şi fimat momentul cu o cameră de înaltă rezoluţie.
Cercetătorii au plecat de la următoarea întrebare: „De ce toate picăturile care ne lovesc atunci când plouă, au forme diferite?”. Cu toate că la început au aceeaşi formă, picăturile de ploaie se schimbă deoarece se sparg. Cum este posibil? Ele formează un balon şi din cauza presiunii aerului se dezintegrează în mai multe fragmente înainte de impactul cu un corp solid.
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