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:

    Will not a tiny speck very close to our vision blot out the glory of the world, and leave only a margin by which we see the blot? I know no speck so troublesome as self.
    George Eliot [Mary Ann (or Marian)

    All ye poets of the age,
    All ye witlings of the stage,
    Learn your jingles to reform,
    Crop your numbers to conform.
    Let your little verses flow
    Gently, sweetly, row by row;
    Let the verse the subject fit,
    Little subject, little wit.
    Namby-Pamby is your guide,
    Albion’s joy, Hibernia’s pride.
    Henry Carey (1693?–1743)

    Our science has become terrible, our research dangerous, our findings deadly. We physicists have to make peace with reality. Reality is not as strong as we are. We will ruin reality.
    Friedrich Dürrenmatt (1921–1990)