Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
hown byprojecting on the paper,through a lawn sieve, somefine iron-dust or filings. Theparticles Avill arrange them-selves in a series of curvedlines of magnetic force, pro-ceeding from homologousor similar points on eachside of the middle of the bar, some uniting about the magnetic centre,others… … 629. Figure 54.—Magnetic curves with two magnets and unlike poles.—Place theSX, of two powerful bar-mag-nets, placed about two inchesapart, and project over themthe fine iron filings as before.Magnetic lines of force, bothstraight and curved, and pro-ceeding from similar points ofeach bar, will be…
Physics · Astronomy
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
