{"id":67118,"date":"2026-09-02T04:50:40","date_gmt":"2026-09-01T19:50:40","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=67118"},"modified":"2026-09-02T04:50:40","modified_gmt":"2026-09-01T19:50:40","slug":"la-gravedad-no-da-miedo-los-microescaladores-que-hacen-que-la-esponja-absorba-agua","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=67118&lang=es","title":{"rendered":"\u00a1La gravedad no da miedo! Los “microescaladores” que hacen que la esponja absorba agua"},"content":{"rendered":"

Soy Ken Kuwako, Science Trainer. Every day is an experiment!<\/strong><\/span><\/p>\n

When you quickly wipe up spilled water in the kitchen with a cloth, or use a sponge to soak up water after a bath, you’re doing something so ordinary that you probably never give it a second thought. But surprisingly, something rather strange is happening: the water is moving against gravity. For example, try dipping a piece of kitchen paper into a cup of tea and you’ll see the liquid smoothly climb upward. Why does this happen?<\/p>\n

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Let’s take a closer look at the amazing mechanism that allows sponges and cloths to soak up water.<\/p>\n

A Porous Structure That Draws Water In<\/h3>\n

Take a close look at a sponge and you’ll notice that it’s full of tiny holes. This kind of structure is called \u201cporous.\u201d<\/b> Inside a sponge is a jungle-like maze of tiny tubes and narrow gaps, all tangled together. These countless \u201ctiny spaces\u201d<\/b> are the key to pulling water upward.<\/p>\n

Capillary Action<\/h3>\n

The main reason kitchen paper, cloths, and even sponges can suck up water is a phenomenon called \u201ccapillary action.\u201d<\/b> It occurs when a liquid rises through a very narrow tube or space, seemingly defying gravity.<\/p>\n