Iceberg Lettuceâs Risks: Iceberg lettuce is one of the fifty fruits and vegetables with the highest levels of pesticide residue, this according to the Environmental Working Group.
McGuffin is a surname of Irish origin, thought to originate from County Donegal. It is an Anglicized form of the Gaelic Mag Dhuibhfinn. Notable people with the surname include: David McGuffin, Canadian television correspondent; Gary and Joanie McGuffin, Canadian explorers, authors, and conservation photographer
The ansible itself is a major plot element, nearly a MacGuffin in her Vatta's War series. Much of the story line revolves around various parties attacking or repairing ansibles, and around the internal politics of ISC (InterStellar Communications), which holds a monopoly on the ansible technology.ne ansible-like device which predates Le Guin's is the Dirac communicator that features in several of the works of James Blish, notably his 1954 short story Beep.