-
interval certified in
regulated measurements is on the
order of 397
zeptoseconds (397 × 10−21 seconds).
Instant (usually
abbreviated in
print to inst...
- This is a list of
radioactive nuclides (sometimes also
called isotopes),
ordered by half-life from
shortest to longest, in seconds, minutes, hours, days...
-
extremely tiny and
extremely fast things. One
attosecond is
equal to 1000
zeptoseconds, or 1/1000 femtosecond.
Because the next SI unit is 1000
times larger...
- shortest-lived is proton-unbound 18 Mg with a half-life of 4.0(3.4)
zeptoseconds. A
precise measurement of the neutron-rich 40Mg in 2019
showed the unexpected...
- PMID 33514541. Grundmann, Sven; Trabert, Daniel; et al. (16
October 2020). "
Zeptosecond birth time
delay in
molecular photoionization". Science. 370 (6514):...
- html NASA –
StarChild Question of the
Month for
February 2000 "Meet the
zeptosecond, the
shortest unit of time ever measured".
Retrieved 2020-10-17. Milham...
- use a
different definition for
clock strata. 2−64
seconds is
about 54
zeptoseconds (light
would travel 16.26 picometers, or
approximately 0.31 × Bohr radius)...
-
isotopes also exist; all are
synthetic and have a half-life of less than 1
zeptosecond (10−21 s). Of these, 5H is the
least stable,
while 7H is the most. Hydrogen...
-
neutron stars and
black holes will
evaporate into atoms; one
hundred zeptoseconds (10−19 seconds)
before the Big Rip,
atoms will
break apart. Ultimately...
- 10−18 s as
attosecond 1018 s Es
exasecond 31.7
billion years 10−21 s zs
zeptosecond 1021 s Zs
zettasecond 31.7
trillion years 10−24 s ys
yoctosecond 1024...
