Circa 1904 photo of the Mount Wilson Observatory under construction. Courtesy of…

Circa 1904 photo of the Mount Wilson Observatory under construction. Courtesy of…

Photo of the Mount Wilson Observatory under construction in 1904. Courtesy of the William C. Barry Collection of Los Angeles .

Photo of the Mount Wilson Observatory under construction in 1904. Courtesy of the William C. Barry Collection of Los Angeles .

Left to right: Albert Einstein, Edwin Hubble, Walther Mayer, Walter S. Adams, Arthur S. King, and William W. Campbell pose in front of the 100-inch telescope dome at Mount Wilson Observatory. Jan. 29, 1931. The Huntington Library, Art Collections, and Botanical Gardens.

Left to right: Albert Einstein, Edwin Hubble, Walther Mayer, Walter S. Adams, Arthur S. King, and William W. Campbell pose in front of the 100-inch telescope dome at Mount Wilson Observatory. Jan. 29, 1931. The Huntington Library, Art Collections, and Botanical Gardens.

engineeringhistory:  Elihu Thomson looking through a telescope. Thomson was chief engineer of General Electric in the 1890s and an early pio...

engineeringhistory: Elihu Thomson looking through a telescope. Thomson was chief engineer of General Electric in the 1890s and an early pio...

Go back to New York City, visit relatives, and see where my dad grew up

Go back to New York City, visit relatives, and see where my dad grew up

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