Nobel Prize Winning Physicist Robert Andrews Millikan Autograph Card

Description: NOBEL PRIZE WINNING PHYSICIST ROBERT ANDREWS MILLIKAN AUTOGRAPH CARD Linen index card boldly signed. A desirable autograph.Measures 3 1/4" X 5"In fine condition Robert Andrews Millikan (March 22, 1868 – December 19, 1953) was an American experimental physicist who won the Nobel Prize for Physics in 1923 for the measurement of the elementary electric charge and for his work on the photoelectric effect.Millikan graduated from Oberlin College in 1891 and obtained his doctorate at Columbia University in 1895. In 1896 he became an assistant at the University of Chicago, where he became a full professor in 1910. In 1909 Millikan began a series of experiments to determine the electric charge carried by a single electron. He began by measuring the course of charged water droplets in an electric field. The results suggested that the charge on the droplets is a multiple of the elementary electric charge, but the experiment was not accurate enough to be convincing. He obtained more precise results in 1910 with his oil-drop experiment in which he replaced water (which tended to evaporate too quickly) with oil.In 1914 Millikan took up with similar skill the experimental verification of the equation introduced by Albert Einstein in 1905 to describe the photoelectric effect. He used this same research to obtain an accurate value of the Planck constant. In 1921 Millikan left the University of Chicago to become director of the Norman Bridge Laboratory of Physics at the California Institute of Technology (Caltech) in Pasadena, California. There he undertook a major study of the radiation that the physicist Victor Hess had detected coming from outer space. Millikan proved that this radiation is indeed of extraterrestrial origin, and he named it "cosmic rays." As chairman of the Executive Council of Caltech (the school's governing body at the time) from 1921 until his retirement in 1945, Millikan helped to turn the school into one of the leading research institutions in the United States.[5][6] He also served on the board of trustees for Science Service, now known as Society for Science & the Public, from 1921 to 1953.Millikan was an elected member of the American Philosophical Society,[7] the American Academy of Arts and Sciences,[8] and the United States National Academy of Sciences.[9] He was elected an Honorary Member of the Optical Society of America in 1950. CELEBRATING 29 YEARS IN BUSINESS!!PLEASE DO NOT WASTE OUR TIME BY WINNING AN ITEM AND NOT PAYING FOR IT!! YOU WILL BE REPORTED TO EBAY AND BLOCKED FROM OUR AUCTIONS!!! ALSO WE WILL NOT ACCEPT ANY BIDS FROM 0 FEEDBACKS, THEY WILL BE CANCELLED! NO RESERVEPLEASE READ!!Terms of Sale: 1. Payment is due within 4 days of the close of this auction. We are set automatically on Unpaid Bidder Assistant.2. EBAY COLLECTS THE SALES TAX 3. If you have any questions, please ask prior to bidding. 4. All items are guaranteed authentic. COAs issued upon request. (Only for signed items) You can buy with complete confidence.5. Buyer pays for shipping. (combine shipping for multiple items) PLEASE NOTE IF BIDDING OUTSIDE OF THE U.S. - WE ONLY SHIP THROUGH EBAY'S GLOBAL SHIPPING PROGRAM SO PLEASE READ AND UNDERSTAND THEIR TERMS AND CONDITIONS!!Thanks for looking and Good Luck bidding!The Inkwell Autograph Gallery

Price: 119.95 USD

Location: Eagleville, Pennsylvania

End Time: 2025-01-25T22:13:43.000Z

Shipping Cost: 5 USD