When scientists focused an electron microscope on the surface of white carbon black, a miraculous microcosm unfolded before their eyes: spherical particles with a diameter of only 20 nanometers were connected by necks to form a chain like structure. This unique "pearl necklace" morphology allowed it to form a reinforcing network in rubber while maintaining processing fluidity; The micro sized pits distributed on the surface are like miniature oil reservoirs, continuously releasing lubricant during friction, which increases the service life of mechanical seals by 10 times. Even more amazing is that by controlling the crystal growth direction, white carbon black with anisotropic thermal conductivity can be prepared, with an axial thermal conductivity coefficient 50 times that of the radial one, providing an ideal solution for heat dissipation in 5G chips. These exquisite designs at the nanoscale make white carbon black a bridge connecting macroscopic properties and microscopic structures.