In 1925 there was an immense shortage of pencils in Russia,becausethey all had to be imported from Germany.Before the first world war,there had been a small pe
There is a new kind of spy—fly spy.which was beyond imaginationin the past.In the body of each fly spy is hidden a tiny radio station.These spies are sent fly
At IOWA State University’s annual Engineers’ Week, there was a contest to build a contraption that would send an egg the farthest distance. Most machines fea