| 释义 |
Definition of fermi in English: ferminounˈfəːmiˈfər- A unit of length equal to 10⁻¹⁵ metre (one femtometre), used in nuclear physics. It is similar to the diameter of a proton. Example sentencesExamples - It acts between two neutrons, between two protons, or between a neutron and a proton, as long as they are no farther apart than a distance of one fermi.
- In order to fuse two hydrogen nuclei together, though, we must force another proton into the hydrogen atom within a distance of 1 fermi from the atom's proton.
- About half a century later, Robert Hofstadter won the 1961 Nobel Prize in physics for his work verifying that the radius of an atomic nucleus is about one fermi.
Origin Early 20th century: named after E. Fermi (see Fermi, Enrico). Definition of fermi in US English: ferminounˈfər- A unit of length equal to 10⁻¹⁵ meter (one femtometer), used in nuclear physics. It is similar to the diameter of a proton. Example sentencesExamples - About half a century later, Robert Hofstadter won the 1961 Nobel Prize in physics for his work verifying that the radius of an atomic nucleus is about one fermi.
- In order to fuse two hydrogen nuclei together, though, we must force another proton into the hydrogen atom within a distance of 1 fermi from the atom's proton.
- It acts between two neutrons, between two protons, or between a neutron and a proton, as long as they are no farther apart than a distance of one fermi.
Origin Early 20th century: named after E. Fermi (see Fermi, Enrico). |