Question: The physicist born in 1871 who worked on the identification of alpha radiation as the nucleus of the helium atom, was considered by Encyclopedia Britannica to be the greatest experimentalist since who ?
Sentence (from "Thomas Royds"): Thomas Royds (April 11, 1884 – May 1, 1955) was a Solar physicist who worked with Ernest Rutherford on the identification of alpha radiation as the nucleus of the helium atom, and who was Director of the Kodaikanal Solar Observatory.
Relevant evidence: Yes