*****  To join INSNA, visit  *****

If one looks up the word 'diffusion' in the *Dictionary of the History of
Science*, you get the standard explanation that 'diffusion' originated in
the 19th c with Graham and Maxwell and has a Latin etymology in the word,
*diffundere*, which means "to spread out." There has to be more to the
story than this, right?

Earlier references might include the  "diffusion of refracted light" in
Robert Greene (1727) and "diffusion of light" in Newton's *Optical Lectures*

My question for these listservs is, does anyone have any additional insight
into the history and origins of the abstract idea of 'diffusion?'

Thank you,
Thomas Ball

SOCNET is a service of INSNA, the professional association for social
network researchers ( To unsubscribe, send
an email message to [log in to unmask] containing the line
UNSUBSCRIBE SOCNET in the body of the message.