- The
femtometre (American
spelling femtometer),
symbol fm, (derived from the
Danish and
Norwegian word
femten 'fifteen',
Ancient Gr****: μέτρον, romanized: metron...
- this
section lists lengths between 10−15
meters and 10−14
meters (1
femtometer and 10 fm). 1 fm –
diameter of a neutron,
approximate range-limit of the...
-
screening distance tends to be of the
order of a few
femtometers, so only the
outer few
femtometers of a
strangelet can
carry charge.
Although nuclei do...
-
force is also short-range,
dropping quickly in
strength beyond about 3
femtometers,
while the
electromagnetic force has an
unlimited range. The strength...
-
Coulomb force,
which becomes stronger when
nucleons are
greater than 2.5
femtometers apart. For this reason,
these elements undergo spontaneous fission. In...
- more speculatively, as
isolated droplets that may vary in size from
femtometers (strangelets) to kilometers, as in the
hypothetical strange stars. At...
-
provide only
about 1% of the m**** of a proton. At the
range of 10−15 m (1
femtometer,
slightly more than the
radius of a nucleon), the
strong force is approximately...
-
enough for contact.
Estimating the
radius of an
atomic nuclei as
about one
femtometer, the
energy needed for
fusion of two
hydrogen is: E
thresh = 1 4 π ϵ 0...
- more speculatively, as
isolated droplets that may vary in size from
femtometers (strangelets) to
kilometers (quark stars). In
particle physics and astrophysics...
-
reference to the
hypothetical mani****tion of
matter on the
scale of a
femtometer, or 10−15 m. This is
three orders of
magnitude lower than picotechnology...
