john cramer

Media - Paperback novel Original year of publication/airing - read about 20 years ago Major themes - alien invasion, artifact discovery Plot (as much as you can remember) some object is discovered, an alien communication is established and promises of knowledge exchange,,tech benefitting mankind...

I'm trying to locate a story I read years ago. A scientist invents a device that when activated will interchange a sphere of space around the device with a sphere of space in some alternate universe or something. The first time, a small polished wooden sphere appears in his lab. Then another...