Nice display, but it starts off with misleading measurements of DNA. The spacing between DNA base pairs is 0.34 nm, so the 10 base pairs pictured are in fact 3.4 nm. But the DNA in a single human cell is about 2 meters, and chromosome lengths vary from 2 to 10 cm. I am skeptical of the hemoglobin vs ribosome sizes as well; hemoglobin has a molecular weight of about 60,000, while ribosomes weigh more than 5 million.