nano.gov

0dMoR TIL: Your fingernail grows about 1 nanometer per second, so in a few seconds, it grows roughly the length of the smallest features in modern 3nm CPUs.
1aJR8 TIL modern Hard Disk Drives have read/write heads that float 4 to 5 nanometers above the surface of the disk while it spins. For scale, a human hair is 80,000-100,000 nm thick.
nDxP TIL a nanometre is about as much as your nails grows, per second.