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Thomas Royds
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<p>Thomas Royds (April 11, 1884 – May 1, 1955) was a British <a href="/facts/Solar_physicist/9IsQIHJE">solar physicist</a> who worked with <a href="/facts/Ernest_Rutherford/hjjMEskl">Ernest Rutherford</a> on the identification of <a href="/facts/Alpha_radiation/rCsHNIUE">alpha radiation</a> as the <a href="/facts/Nucleus_(atomic_structure)/orpIm5Xl">nucleus</a> of the <a href="/facts/Helium_atom/ASrTuP3v">helium atom</a>, and who was Director of the <a href="/facts/Kodaikanal_Solar_Observatory/vqQKHQmQ">Kodaikanal Solar Observatory</a>, India. </p>