Balmer series Reference Libraries
H II Region -- An H II region is an emission nebula associated with hot, young, blue stars, and star forming regions. H II, or singly-ionized hydrogen, is nebular gas ionized by ultraviolet light emitted by these hot, young stars of spectral type O and B. The sizes of H II regions are determined both by the amount of gas present, and by the luminosity of the O and B stars -- the more...
- The offense of persistently instigating lawsuits, typically groundless ones.
- An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
- Sale or purchase of positions in church or state.