Small Number - Tiny Numbers in Science

Tiny Numbers in Science

Even smaller numbers are often found in science, which are so small that they are not easily dealt with using fractions. Scientific notation was created to handle very small and very large numbers.

Examples of small numbers describing everyday real-world objects are:

  • size of a bit on a computer hard disk
  • feature size of a structure on a microprocessor chip
  • wavelength of green light: 5.5 × 10-7 m
  • period of a 100 MHz FM radio wave: 1 × 10-8 s
  • time taken by light to travel one meter: roughly 3 × 10-9 s
  • radius of a hydrogen atom: 2.5 × 10-11 m
  • the charge on an electron: roughly 1.6 × 10-19 C (negative)

Other small numbers are found in particle physics and quantum physics:

  • size of the atomic nucleus of a lead atom: 7.1 × 10-15 m
  • the Planck length: 1.6 × 10-35 m

Read more about this topic:  Small Number

Famous quotes containing the words tiny, numbers and/or science:

    Everything seems beautiful because you don’t understand. Those flying fish, they’re not leaping for joy, they’re jumping in terror. Bigger fish want to eat them. That luminous water, it takes its gleam from millions of tiny dead bodies, the glitter of putrescence. There’s no beauty here, only death and decay.
    Curtis Siodmak (1902–1988)

    Green grow the rushes-O
    What is your one-O?
    —Unknown. Carol of the Numbers (l. 2–3)

    All science requires mathematics. The knowledge of mathematical things is almost innate in us.... This is the easiest of sciences, a fact which is obvious in that no one’s brain rejects it; for laymen and people who are utterly illiterate know how to count and reckon.
    Roger Bacon (c. 1214–c. 1294)