The real joke here is that both Alex and the professor are talking from textbooks and not from actual experience. No test equipment manufacturer sells an ideal current source. What you can actually build or buy, are constant current sources. Real constant current or contant voltage source can be told apart with nothing more than a RatShack multimeter. Short both, and see which one is still working after driving the dead short. Amusingly enough, you could tell from the temp rise that the _voltage_ source is the hotter one, if it doesn't fail or explode. Mistake piled on mistake. It made me laugh, that's for sure, so it's a good comic anyway.
K. -----Original Message----- From: Jed Rothwell [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 10, 2006 12:02 PM To: [email protected] Subject: OFF TOPIC "Doonsbury" features calorimetry And Cornell! See: http://www.doonesbury.com/strip/dailydose/index.html It's not often you see "Thevenin and Norton equivalences" in a comic strip. - Jed
