What's the difference between nanospheres and square bricks?

Nanospheres are different from square bricks in shape. A nanosphere is a nanosphere. Nanospheres are nano-scale spherical atomic clusters composed of multi-element alloys, which can be adsorbed on damaged friction surfaces to form a new protective film with ultra-high hardness, extremely low friction coefficient, wear resistance and corrosion resistance, and realize lubrication, repair and protection. Experiments show that its friction resistance is only 1/3 of that of ordinary lubricants. The shape of a square brick is different from that of a nanosphere, and it is a square block. The advantage of this method is that it can disturb the water flow, make the distance of the water flow longer, stay in the filter material longer, and achieve better filtration effect.