Mamie Eisenhower christens the USS Nautilus at its 1954 launch in Groton, CT

The video describes the readiness of a new submarine for sea duty, highlighting its atomic reactor that provides an extensive underwater cruising range. The launch event took place on January 21st in Groton, Connecticut, where Mrs. White D. Eisenhower christened the submarine Nautilus with a champagne bottle, marking its entry into the water.

What type of reactor was mentioned as being similar to the working model?

What feature of the new submarine was highlighted regarding its cruising range?