‘El Hormiguero’ has had the pleasure of receiving Sara Baras. The bailaora has come to the set after shining at the Sydney Opera House with her incredible talent for flamenco to present that her performances are continuing in Madrid.
Marron has taken advantage of the arrival of the woman from Cádiz to surprise him with spectacular science. To carry out this experiment we have cut a flower out of metallic paper, through which there is a small tube, at the upper end of which we will apply a soapy mixture creating a membrane. Injecting air through the tube will form a soap bubble.
The shape of the pump will be spherical, since it is the shape that, for a given volume, represents the smallest surface area, as we have explained previously. When it comes into contact with the flower petals, they will remain attached to the soap membrane and, due to their lightness, they will accompany its movement, creating the illusion that the flower is opening and closing.
Frequent questions
What is surface tension?
In physics, the amount of energy required to increase its surface per unit area is called the surface tension of a liquid. This definition implies that the liquid presents a resistance to increase its surface, which in effect allows some insects, such as the shoemaker, to be able to move along the surface of the water without sinking. Surface tension is a manifestation of intermolecular forces in liquids.
