John le Carre wrote fiction espionage novels. Espionage novels are novels which focus on a spy's life or spying in general. His most famous work is The Spy That Came In from the Cold.
The definition of a ditz is slang for someone who is silly or who seems to have scattered thinking. An example of ditz is a silly dumb person who just giggles all day. ditz. Slang a person thought of as being flighty, eccentric, silly, etc. ditz.
By Elisabeth Dahl. The hertz is a familiar unit in the measurement of electricity--as common a word at home supply stores as amp or volt. Like some other units of measure, the hertz (abbreviated Hz) was named after an accomplished scientist. A hertz is an international measure of electrical frequency, with 1 Hz being one cycle per second.