Browsing Early Experiments by Subject "James Dinwiddie; early experiments; 1777; electricity; machines; hypothesis; lightning; Benjamin Franklin; conductors; water spouts; earthquakes; volcano; jack 'o' lanterns"
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Browsing Early Experiments by Subject "James Dinwiddie; early experiments; 1777; electricity; machines; hypothesis; lightning; Benjamin Franklin; conductors; water spouts; earthquakes; volcano; jack 'o' lanterns"