OFFPRINTS OF TWO PAPERS BY BLACKETT, INCLUDING HIS FAMOUS PHOTOGRAPHIC PROOF THAT RADIOACTIVITY COULD PRODUCE ALPHA DECAY, AND HIS DISCUSSION OF DUAL-CAMERA CLOUD CHAMBER SET-UPS, TWO PAPERS THAT CONTRIBUTED TO HIS BEING AWARDED THE 1948 NOBEL PRIZE IN PHYSICS. More

FIRST EDITION, OFFPRINT ISSUE, INSCRIBED BY NIELS BOHR, of Bohr's Nobel Prize lecture, delivered on the occasion of Bohr's acceptance of the 1922 Nobel Prize in Physics. An association copy: Inscribed to J.A. Christiansen, noted scientist and student of Bohr. More

FIRST EDITIONS of two critical papers in developing our understanding of the atom: 1) all three parts of Bohr’s landmark work marking the definitive break from using classical physics at the atomic level, often cited as the foundation of our modern understanding of the atom; 2) both parts of Moseley's..... More

FIRST EDITION IN ORIGINAL WRAPPERS OF BORN’S NEW MATHEMATICAL DESCRIPTION OF QUANTUM PHYSICS, INCLUDING THE FIRST USE OF THE TERM "QUANTUM MECHANICS." More

FIRST EDITION IN ORIGINAL WRAPPERS of the famous “three-man paper,” the first, complete, self-consistent description of quantum mechanics. More

THE CAVENDISH EXPERIMENT: FIRST EDITION IN EXTREMELY SCARCE ORIGINAL WRAPPERS OF THE REPORT OF CAVENDISH’S EXPERIMENT TO DETERMINE THE DENSITY OF THE EARTH AND NEWTON’S GRAVITATIONAL CONSTANT “G”, ONE OF THE MOST FUNDAMENTAL UNIVERSAL CONSTANTS. More

FIRST EDITION IN ORIGINAL WRAPPERS of Debye’s explanation of the dual wave-particle nature of electromagnetic radiation (the “Compton effect”). Precedes the full account by Compton. More

FIRST EDITION, SCARCE PRESENTATION OFFPRINT OF ONE OF DIRAC’S MOST IMPORTANT PAPERS: the introduction of what is now known as “Fermi-Dirac statistics”. More

FIRST EDITION IN ORIGINAL WRAPPERS of Dirac's electron "hole" theory; the foundation for his prediction of anti-matter. More

FIRST PRINTING of Albert Einstein's groundbreaking 1905 paper, the introduction and derivation of the most famous equation in modern physics: E=mc2. More

FIRST EDITION of two important Einstein papers, including one of the two papers on his Noble Prize winning work on the photoelectric effect. More

FEYNMAN OFFERS ADVICE AND ENCOURAGEMENT FOR A SCIENTIFIC ENDEAVOR. More

FIRST EDITION IN ORIGINAL WRAPPERS of Feynman’s paper providing a rigorous justification and proof for his famous “Feynman diagrams” and “Feynman rules”. More