1.saksalaissyntyinen fyysikko, joka kehitti suhteellisuusteorian ja esitti valon koostuvan energiakvanteista (1879–1955)
1.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)