Description: Henry David Hubbard (1870-1943), a physicist at the U.S. National Bureau of Standards, designed the first edition of the "Periodic Chart of the Atoms" in 1924. The chart is still in use today, continually updated to reflect new elements.
Description: Spectacular natural events, like eclipses, have long been the bread-and-butter of science journalism. Science Service, too, succumbed to the lure of combining colorful, firsthand descriptions with technical explanations.
Description: In 1925, seven George Washington University students volunteered to stay awake for sixty hours, and drove, danced, sang, and swam in an effort to remain alert.
Description: On January 24, 1925, for the first time in over a century, a total solar eclipse would be visible across the northern part of the United States. How scientists used a dirigible to observe the phenomenon.
Description: To celebrate Women’s History Month, here are two examples of 20th-century women who applied their education and expertise in geology and paleontology outside traditional university career paths.
Description: Need a new book to read? Look no further than these recommendations from Smithsonian Science Service staff writers during the 1920s and 1930s.
Description: Formal portrait photographs of scientists tend to preserve the stiffness of the moment, rather than capture the sitter’s personality. Perhaps that is the reason that candid photographs of celebrities like Albert Einstein stick in public memory.A 1931 photograph of three Nobel laureate physicists illustrates why we tend to remember the informal photos of scientists more than
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