A Cornell University professor was caught on camera telling students Hamas’ terror attack on Israel — which has left more than 1,400 dead — was “exhilarating” and “energizing.” The remarks were made at a pro-Palestine protest by Russell Rickford, an associate professor of history at the top-tier Ithaca, New York, school and posted online Sunday by a student who called them “shameful.” The footage of Rickford’s impassioned speech was also shared with The Post by two other tipsters. They declined to say when and where exactly the rally took place, but both said they were shocked by the brazen remarks....