nLab
femtometer

Context

Physics

physics, mathematical physics, philosophy of physics

Surveys, textbooks and lecture notes


theory (physics), model (physics)

experiment, measurement, computable physics

Contents

Idea

The femtometer is a physical unit of length.

Definition

A femtometer (abbreviated fmfm) is one 10 1510^{15}th of a meter:

fm10 15m. fm \coloneqq 10^{-15} m \,.

The radius of the proton is about 0.8fm0.8 \, fm.

References

See also

Revised on November 9, 2017 10:40:59 by Tim Porter (95.148.217.71)