SCIENTISTS TO WATCH

---------- One way to learn how to be effective on television is to spend some time watching the masters at work.

"Phil Morrison does a fantastic job," says University of Chicago physicist Leon Lederman. "He's a real pro at this."

Paula Apsell, executive producer of the Public Broadcasting System's "Nova," calls Massachusetts Institute of Technology physicist Morrison the "classic example of a person who's a really good communicator...who really leaps out of the screen, who speaks with clarity, and everything he says is interesting."

To see what Lederman and Apsell mean, watch Morrison in the PBS series "The Ring of Truth."

"I like Carl Sagan," says Lederman. He acknowledges that "a lot of scientists were upset" with "Cosmos" because there was so much emphasis on Sagan's personality. ("You couldn't tell where Sagan left off...