He equated mass to energy
Else clues• '21 Nobelist
• A genius, relatively speaking
• Albert, the genius
• Author of Stepquote
• Brain
• Brainiac
• Brainy one?
• Brainy sort
• Brilliant person, as it were
• Developer of the theory of relativity
• Element 99 was named for him
• Genius
• German genius
• He penned E = mc
• He was a genius, relatively speaking
• Honoree of element 99
• Mass-energy equation formulator
• Mensa member?
• Name synonymous with genius
• Physicist who published four groundbreaking articles in 1905
• Physics giant
• Real brain
• Relativity formulator
• Relativity name
• Relativity researcher
• Relativity theorist
• The ----- of poker (David Sklansky)*
• Time's 1999-named Person of the Century
• Physicist born in Germany who formulated the special theory of relativity and the general theory of relativity
• Einstein also proposed that light consists of discrete quantized bundles of energy (later called photons) (1879-1955)