Popular electricity magazine in plain English (1912)
Chicago, Ill. : Popular Electricity Pub. Co. · leaf 487
rated by endlesschains driven by motors and the craft are carried from one level to the other in re-markably short time. As many as 1,600 boats have been earned through in one day. STUDYING STARS IN AN ARTIFICIAL SKY Within a huge globe at the ChicagoAcademy of Sciences one may see in a few-minutes… … Huge Sphere Containing an Artificial Sky in which to Study Stars Passing through a door and up a fewsteps the observer finds himself on awooden platform, inside the globe, cap-able of holding fifteen persons. Thedoor closes and everything is dark.Gradually the eyes become accustomedto the darkness…
Electricity
Internet Archive Book Images · Smithsonian Libraries · No known copyright restrictions (public domain). Free to use for anything.
