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: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
Description: Each week, the Archives features a woman who has been a groundbreaker at the Smithsonian, past or present, in a series titled Wonderful Women Wednesday.
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