HV
435957
219967806
2008-06-17T18:01:07Z
Shanedidona
185957
add Humanae Vitae link
'''HV''' or '''Hv''' may stand for:
*Mitochondrial DNA [[Haplogroup HV (mtDNA)|Haplogroup HV]].
*[[Burkina Faso]], [[World Meteorological Organization|WMO]] country code (from the former French name, "Haute Volta").
*[[Hwair]], or ƕ, a [[digraph]] used in transliterating the [[Gothic alphabet]].
*[[Heimevernet]], the [[Norway|Norwegian]] home guard.
*[[High voltage|High Voltage]].
*[[Home video|Home Video]].
*[[Hrvatska Vojska]], the [[Croatia]]n army.
*[[Hudson Valley]]
*[[Hybrid Vehicle]]s.
*[[Transavia]], [[IATA]] airline code.
*In [[physics]] and [[chemistry]], ''hν'' is the formula for a photon's energy in reactions, e.g.
::2 H<sub>2</sub>O<sub>2</sub> + ''hν'' → 2 H<sub>2</sub>O + O<sub>2</sub>
:::''h'' = Planck's constant (in J·s)
:::ν or f = Frequency (in Hz)
::Note that ν here is actually the Greek letter [[Nu (letter)|nu]], not the Latin letter v.
*[[Vickers Hardness]], a hardness test.
*[[Humanae Vitae]], a papal encyclical.
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