Nichole Hine, a research intern at the Tacoma Historical Society, shows a 1947 photo of College of Puget Sound’s Robert Sprenger with a rainmaking machine he built. Peter Haley ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results