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Language English Remove constraint Language: English Subject Nobel Prize winners Remove constraint Subject: Nobel Prize winners Subject First day covers (Philately) Remove constraint Subject: First day covers (Philately)

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    • 1963-Nov-21

    Stamps depict Niels Bohr, the equation for the Bohr frequency condition (an equation relating to light frequency and electrons), and a diagram of the Bohr model of a hydrogen atom.

    • 1976

    Cachet created by ArtCraft depicts a male and female chemist working in a laboratory setting, with text reading, "A Century of Modern Chemistry." Cover signed by Glen Seaborg.

    • 1971

    Cachet includes two depictions of Lord Rutherford and text, "World Famous Scientist Pioneering in Radioactivity and Nuclear Physics." The research program in the field of radioactivity undertaken by Rutherford at…

    • 1956

    Stamp depicts Albert Einstein and the the equation of mass-energy equivalence (E=MC2). Einstein has been featured on numerous stamps from around the world. His first appearance on a stamp is believed to be on this…

    • 1966

    Cachet and stamp depict Albert Einstein. Cachet also depicts Einstein's formula for mass-energy equivalence and is from the Prominent Americans Series. The postmark is from Princeton, New Jersey.