For closed systems with no external source or sink of energy, the first law of thermodynamics states that a system's energy is constant unless energy is transferred in or out by mechanical work or heat, and that no energy is lost in transfer. This means that it is impossible to create or destroy energy.
GROGAN. The Irish name Grogan is derived from the native Gaelic O'Gruagain Sept that was initially located in County Roscommon but which became widely dispersed. The name is derived from a Gaelic word meaning 'fierceness'. Grugan, Groggan, Groogan and O'Grogan are among the variants of this name.he Irish name Grogan is derived from the native Gaelic O'Gruagain Sept that was initially located in County Roscommon but which became widely dispersed.
Submit. Â· just now. Report Abuse. It means the Liverpool accent or dialect, and a scouser is someone from Liverpool. It's also the name of a local stew, very similar to Irish stew (there are a lot of people of Irish descent in Liverpool) and it derives from the Norwegian word lapskaus, meaning stew.Liverpool used to be a major seaport and frequently there were a lot of Norwegians there.t's also the name of a local stew, very similar to Irish stew (there are a lot of people of Irish descent in Liverpool) and it derives from the Norwegian word lapskaus, meaning stew. Liverpool used to be a major seaport and frequently there were a lot of Norwegians there.