Quick Answer. A mixed cell reference in an Excel spreadsheet refers to a cell that contains both absolute and relative references. An absolute reference is a number that remains the same, and a relative references is a number that changes when a formula or function is applied to new cells. Continue Reading.
The English Renaissance. Ingo Jones (1573-1652), England's first major scene designer, introduced the Italian concept of perspective scenery to the English court theatre of James I in the beginning of the 17th century.
JOHN LOGIE BAIRD (1888-1946). It was in his rooms in Soho, London, that in 1925 John Logie Baird made a technical breakthrough: successfully transmitting a 30-line vertically scanned image of the head of a ventriloquist's dummy. A Scottish engineer, Baird is considered to be the inventor of the television.he brilliant Christopher Cockerell came up with one of the greatest British inventions of the second half of the 20th century: the hovercraft.