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

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

    Imagine that it is you yourself who are erecting the edifice of human destiny with the aim of making men happy in the end, of giving them peace and contentment at last, but that to do that it is absolutely necessary, and indeed quite inevitable, to torture to death only one tiny creature, the little girl who beat her breast with her little fist, and to found the edifice on her unavenged tears—would you consent to be the architect on those conditions?
    Feodor Dostoyevsky (1821–1881)

    I’m not even thinking straight any more. Numbers buzz in my head like wasps.
    Kurt Neumann (1906–1958)

    The present war having so long cut off all communication with Great-Britain, we are not able to make a fair estimate of the state of science in that country. The spirit in which she wages war is the only sample before our eyes, and that does not seem the legitimate offspring either of science or of civilization.
    Thomas Jefferson (1743–1826)