Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
Sigh. The group/phase velocity distinction is one that often escapes
students, and I've found that a careful computer graphic can do wonders.
Students say "Oh, THAT'S what you mean!" You can see the light bulbs going
on. There's a big difference between that and having students memorize
factoids.
John E. Gastineau mailto: gastineau@mindspring.com KC8IEW
900 B Ridgeway Ave. http://gastineau.home.mindspring.com
Morgantown WV 26505 (304) 296-1966 voice (304) 296-5035 fax
USA