Monday, February 1, 2010

[Yasmin_discussions] simulation vs emulation vs representation


thanks for the example of molecular dynamics-
i guess i would distinguish three sub categories

- representation/ eg a walt dysney cartoon that elicits human response like
the physical phenomenon but the animation does not encode any physics

- emulation- where the representation behaves like the physical phenomenon
but does not encode the same physical assumptions ( eg a computer can
emulate old software but runs on new computer chips and emulates the way the
old chips behaved)

- simulation- where the software system encodes the best scientific laws
available to enable a system to behave like the real phenomenon= many
artificial life systems try to do this

the two examples i gave on stellar evolution and evolution of structure of
the universe are "simulations'= i tried to
find out what category the molecular dynamics animation was\
but couldnt=do you know ?

i suspect that there are texts on these differences between
represenation/emulation/simulation =maybe yasminers can point
us to them


---------- Forwarded message ----------
From: ramon guardans <>

Thank you Roger and Avi, informative and beautiful mterial
adding to this i would suggest

and other similar molecular dynamics simulations

be well
Yasmin_discussions mailing list

Yasmin URL:

HOW TO SUBSCRIBE: click on the link to the list you wish to subscribe to. In the page that will appear ("info page"), enter e-mail address, name, and password in the fields found further down the page.

HOW TO UNSUBSCRIBE: on the info page, scroll all the way down and enter your e-mail address in the last field. Enter password if asked. Click on the unsubscribe button on the page that will appear ("options page").

HOW TO ENABLE / DISABLE DIGEST MODE: in the options page, find the "Set Digest Mode" option and set it to either on or off.