Launching things with electromagnetism is pretty fun, with linear induction motors being a popular design that finds use from everywhere in hobby designs like [Tom Stanton]’s to the electromagnetic ...

MR. BEHREND, in the preface to his book, rather offers an apology for adding one more to the already overwhelming number of books dealing with electricity and its applications. In some cases an ...

May be the anomalies in the Pioneer trajectories are a result of the spacecrafts’ spin (20 July, p 28). I recall attending a lecture in 1974 where the late Eric Laithwaite (inventor of the linear ...