The sponge magic wipe uses the mechanism of physical decontamination, relying on the nano-scale capillary opening structure in the sponge, it automatically absorbs the stains on the surface of the object during the wiping process, like countless ultra-micro vacuum cleaners at work, only clean water is required, and does not rely on any chemical washing. It is called a miracle because it helps to degrade it.
Explain the capillary phenomenon: The surface of the liquid is similar to a tensioned rubber film. If the liquid surface is curved, it has a tendency to flatten. Therefore, the concave liquid face exerts a pulling force on the liquid below, and the convex liquid face exerts pressure on the liquid below. The liquid level of the immersion liquid in the capillary tube is concave. It exerts a pulling force on the liquid below to make the liquid rise along the tube wall. When the upward pulling force is equal to the gravity of the liquid column in the tube, the liquid in the tube stops rising. Achieve balance. The same analysis can also explain the drop of non-wetting liquid in the capillary. The magic wipe is to use the attractive effect of the liquid surface on the solid surface, that is, the capillary action to achieve physical decontamination.
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