James Clerk Maxwell, around 1882.
The radio, the television and certainly the mobile phone have transformed the way we access information and communicate with each other.
These inventions and devices would not exist if James Clerk Maxwell (1831-1879) had not discovered the relationship between electricity, magnetism and light.
His research in the field of electromagnetism led him to establish the similarities between the speed of travel of electromagnetic waves and of light.
Maxwell famously devised four mathematical equations that explain his theory of electromagnetism. He was one of the most influential scientists of his time and some of his findings inspired Albert Einstein's research on relativity.
An ABC of Scotland
Q-equation was just one of the 'Q' topics in our alphabetical exhibition celebrating some of the outstanding achievements by Scotland and Scots.
'Wha's like us?' ran from 13 December 2013 to 18 May 2014.